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Owl Pellet Dissection Activity
Owl Pellet Dissection Activity: Background: Owl pellets are neat little packages of fur, bones, and other indigestible stuff that are regurgitated (spit up) sometime after an owl has finished digesting several meals. You can find owl pellets on the ground under trees where owls like to roost or nest. All owls cough up pellets as a part of how they digest their food. Most of the time, they swallow their prey whole without chewing or tearing the flesh apart. This means that owls naturally have a lot more bones, feathers, and fur in their diet. Owls can digest only the soft muscles and organs of their prey. The bones, teeth, fur, feathers, scales, or insect skeletons are too dense and cannot be converted into energy. The harder parts may also puncture an owl’s soft, curved intestines if passed through its digestive tract. Instead, the waste material is formed into a pellet in the gizzard, a muscular pouch in the owl’s digestive system. The gizzard operates like a trash compactor, pressing all the bones, fur, feathers, or other indigestible stuff into a firm, oval-shaped ball. When the pellet gets big enough, it is passed back up the esophagus to be cast out (thrown up) about twelve hours after eating. Although other birds, like eagles and hawks, also regurgitate pellets, owls are more efficient at it and they regurgitate more frequently. Owls swallow their prey whole, ingesting the entire skeleton. Other raptors selectively tear at their prey, eating only the soft digestible parts and leaving the indigestible bones. Also, unlike other birds, owls do not have a crop, which is an organ that holds food until the stomach is ready to receive it. -
NASAT 2013 Round #5
NASAT 2013 Round 5 Tossups 1. In this novel, a priest who has a marvelous collection of masks is found beheaded in a patch of hyacinths. That character, Father Huismans, teaches the son of Zabeth, a magician. The servant Ali takes the name Metty before coming to work with the protagonist of this novel, whose friend Indar says that his home country is not strong since they do not have a flag. The protagonist of this novel has an affair with Yvette, whose husband Raymond works in an area called the Domain for a ruler called the Big Man. For 10 points, name this novel in which Salim sets up a shop in an unnamed African country, written by V. S. Naipaul. ANSWER: A Bend in the River 192-13-83-05101 2. In one piece, this composer memorialized an incident in which a crowd waiting at a train station spontaneously broke out into song. Nicholas Slonimsky instructed part of his ensemble to play four measures in the same time that another part played three to evoke dueling bands in his rendition of another "orchestral set" by this composer. He instructed the pianist to create a tone cluster by hitting the keys with a piece of wood in the "Hawthorne" movement of another work. This composer used minor thirds in his quotations of songs like "Old Black Joe" in the first movement of his most famous piece, which depicts the Robert Gould Shaw Memorial. For 10 points, name this American composer of Concord Sonata and Three Places in New England. -
By Rhonda Lucas Donald Illustrated by Cathy Morrison Dino Treasures Dino Treasures
Dino Treasures by Rhonda Lucas Donald illustrated by Cathy Morrison Dino Treasures Dino Treasures Just as some people dig and look for pirate treasure, Award-winning author Rhonda Lucas Donald has some scientists dig and look for treasures, too. written more than a dozen books for children and These treasures may not be gold or jewels but teachers, including the prequel to this book, Dino fossils. Following in the footsteps of Dino Tracks, Tracks. Her recent book Deep in the Desert, won this sequel takes young readers into the field with the silver medal in the 2011 Moonbeam Children’s paleontologists as they uncover treasured clues Book Awards. She is a member of the Society of left by dinosaurs. Readers will follow what and how Children’s Book Writers and Illustrators, National scientists have learned about dinosaurs: what they Science Teachers Association, and the Cat Writers ate; how they raised their young; how they slept, Association. Rhonda and her husband share their fought, or even if they ever got sick. The tale is told Virginia home with their dogs, Maggie and Lily, through a rhythmic, fun read-aloud that can be sung and their very dignified cats, Darwin and Huxley. to the tune of Itsy Bitsy Spider. Visit her website at browntabby.com. It’s so much more than a picture book . this book Cathy Morrison may have started her art career in is specifically designed to be both a fun-to-read animation but she soon fell in love with illustrating story and a launch pad for discussions and learning. -
Additional Specimen of Microraptor Provides Unique Evidence of Dinosaurs Preying on Birds
Additional specimen of Microraptor provides unique evidence of dinosaurs preying on birds Jingmai O’Connor1, Zhonghe Zhou1, and Xing Xu Key Laboratory of Evolutionary Systematics of Vertebrates, Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, Beijing 100044, China Contributed by Zhonghe Zhou, October 28, 2011 (sent for review September 13, 2011) Preserved indicators of diet are extremely rare in the fossil record; The vertebral column of this specimen is complete except for even more so is unequivocal direct evidence for predator–prey its proximal and distal ends; pleurocoels are absent from the relationships. Here, we report on a unique specimen of the small thoracic vertebrae, as in dromaeosaurids and basal birds. Poor nonavian theropod Microraptor gui from the Early Cretaceous preservation prevents clear observation of sutures; however, Jehol biota, China, which has the remains of an adult enantiorni- there does not appear to be any separation between the neural thine bird preserved in its abdomen, most likely not scavenged, arches and vertebral centra, or any other indicators that the but captured and consumed by the dinosaur. We provide direct specimen is a juvenile. The number of caudal vertebrae cannot evidence for the dietary preferences of Microraptor and a nonavian be estimated, but the elongate distal caudals are tightly bounded dinosaur feeding on a bird. Further, because Jehol enantiorni- by elongated zygapophyses, as in other dromaeosaurids. The rib thines were distinctly arboreal, in contrast to their cursorial orni- cage is nearly completely preserved; both right and left sides are thurine counterparts, this fossil suggests that Microraptor hunted visible ventrally closed by the articulated gastral basket. -
Wildlife Center Classroom Series Owl Pellets: Little Packages of Owl Puke
Wildlife Center Classroom Series Owl Pellets: Little Packages of Owl Puke Wednesday August 10, 2016 Raina Krasner, WCV: Hello, everyone! Welcome to today’s Wildlife Center Classroom Series! Raina Krasner, WCV: Today, we’re talking about something that I think many of you are familiar with – owl pellets! Otherwise known as owl puke, little furball gifts, tiny packages of bones. But let me stop myself before I give away too much of the good stuff. Comment From caleb (͡๏̯͡๏) WOO HOO! Kids think this may be one of the BEST Classroom Series EVER ~~ we LOVE to dissect Papa G'Ho pellets! Comment From Dave in Missouri Oh, oel puke, this will go good with my lunch!:) Raina Krasner, WCV: :) Raina Krasner, WCV: First, what is an owl pellet? Eagle Owl Pellet in Germany, Martin Lindner Wildlife Center Classroom Series: Owl Pellets: Little Packages of Owl Puke Page 1 Raina Krasner, WCV: When an owl eats its prey, it consumes most, if not all, parts of the animal. Raina Krasner, WCV: If you order a fast food hamburger (or a veggie burger!) and it comes to you in a neat little wax paper package, and on the hamburger there is lettuce, tomato, and pickles, you have the luxury of using your utensils or fingers to pull back the wax paper wrapper, and then pick apart the burger and pull off the parts you don’t like, don’t want, or can’t eat. Raina Krasner, WCV: An owl, however, has to eat everything – “wrapper”, toppings, and all. Raina Krasner, WCV: No handy little thumbs and fingers to pick apart the food. -
Digitalcommons@University of Nebraska - Lincoln
University of Nebraska - Lincoln DigitalCommons@University of Nebraska - Lincoln Earth and Atmospheric Sciences, Department Papers in the Earth and Atmospheric Sciences of 2005 New Stratigraphic Subdivision, Depositional Environment, and Age Estimate for the Upper Cretaceous Djadokhta Formation, Southern Ulan Nur Basin, Mongolia Demberelyin Dashzeveg Geological Institute of the Mongolian Academy of Sciences, [email protected] Lowell Dingus American Museum of Natural History, [email protected] David B. Loope University of Nebraska, Lincoln, [email protected] Carl C. Swisher III Rutgers University Togtokh Dulam Mongolian Geological Survey See next page for additional authors Follow this and additional works at: https://digitalcommons.unl.edu/geosciencefacpub Part of the Earth Sciences Commons Dashzeveg, Demberelyin; Dingus, Lowell; Loope, David B.; Swisher, Carl C. III; Dulam, Togtokh; and Sweeney, Mark R., "New Stratigraphic Subdivision, Depositional Environment, and Age Estimate for the Upper Cretaceous Djadokhta Formation, Southern Ulan Nur Basin, Mongolia" (2005). Papers in the Earth and Atmospheric Sciences. 209. https://digitalcommons.unl.edu/geosciencefacpub/209 This Article is brought to you for free and open access by the Earth and Atmospheric Sciences, Department of at DigitalCommons@University of Nebraska - Lincoln. It has been accepted for inclusion in Papers in the Earth and Atmospheric Sciences by an authorized administrator of DigitalCommons@University of Nebraska - Lincoln. Authors Demberelyin Dashzeveg, Lowell Dingus, -
Subject Index
Cambridge University Press 0521811724 - The Evolution and Extinction of the Dinosaurs, Second Edition David E. Fastovsky and David B. Weishampel Index More information Subject index Bold type indicates figures. Absolute age 23–5 Arctic dinosaurs 372–373, 373 Actinopterygii 67 Asteroid impact 425, 426–32 Aguja Formation (Upper Cretaceous, USA) 401 see also Cretaceous–Tertiary boundary; Alxa Desert (China) 297 Iridium; Chicxulub Amarga Canyon (Argentina) 262 Affects of 432–4 American Museum of Natural History (USA) Indicators of 426, 427–9, 428, 429, 430, 431 18n, 19, 253, 259, 292 Atlas Mountains (Morocco) 263 Amnion 77 Auca Mahuevo (Upper Cretaceous, Argentina) Amniota 245, 246 Diagnostic characters 77, 78 Aves, see Theropoda Major groups 78 Azendoh (Morocco) 261 Amphibia 77, 77n, 393 Amur River (Sino-Russian border) 217 Baharije Oasis (Egypt) 291, 292 Anapsida 78, 79–80 Barun Goyot Formation (Upper Cretaceous, Anhui Province (China) 162 Mongolia) 401 Ankylosauria Bernissart (Belgium) 212, 213 Age 133, 396, 397 Biological classification 68 Armament 133, 137, 138, 139 Biostratigraphy 22, 27–8 Behavior 134–7, 138–9 Birds, see Theropoda Clades of 133, 139–42 Body plans 65 Cladogram of, see Cladograms Bone histology 362–7, 363 Derived characters of 140, 139–41, 142 British Museum (Natural History) 234, 258, 336 Distribution 134, 135 Bug Creek (USA) 441 Evolution of 139 Burgess Shale (Middle Cambrian, Canada) 64 Fermentation in 136, 137 Burial 6, 7, 8, 9, 10 History of discovery 142–5 Inferred intelligence 361 Canadian Dinosaur Rush 182, 183, -
Jaw Muscles of Theropod Dinosaurs and Their Extant Relatives; Illustrating the Story of Functional Morphology and Evolution
Rochester Institute of Technology RIT Scholar Works Theses 11-9-2016 Visualization of Comparative Anatomy: Jaw muscles of Theropod Dinosaurs and their extant relatives; Illustrating the story of functional morphology and evolution Maxwell Yeager [email protected] Follow this and additional works at: https://scholarworks.rit.edu/theses Recommended Citation Yeager, Maxwell, "Visualization of Comparative Anatomy: Jaw muscles of Theropod Dinosaurs and their extant relatives; Illustrating the story of functional morphology and evolution" (2016). Thesis. Rochester Institute of Technology. Accessed from This Thesis is brought to you for free and open access by RIT Scholar Works. It has been accepted for inclusion in Theses by an authorized administrator of RIT Scholar Works. For more information, please contact [email protected]. Yeager - i ROCHESTER INSTITUTE OF TECHNOLOGY A Thesis Submitted to the Faculty of The College of Health Sciences & Technology In Candidacy for the Degree of MASTER OF FINE ARTS In Medical Illustration The Department of Medical Illustration Visualization of Comparative Anatomy: Jaw muscles of Theropod Dinosaurs and their extant relatives; Illustrating the story of functional morphology and evolution by Maxwell Yeager November 9, 2016 Yeager - ii Visualization of Comparative Anatomy: Jaw muscles of Theropod Dinosaurs and their extant relatives; Illustrating the story of functional morphology and evolution Maxwell Yeager Content Advisor: Ali Nabavizadeh Signature: __________________________________ Date: ____________________ -
Bolortsetseg Minjin - Mongolian Paleontologist S T C O • R Y S • U R M U a O S N O G C O a T L T I E Books
Map of Mongolia The Art of Exploration EXTRAORDINARY EXPLORERS AND CREATORS INSPIRE US ALL TO REACH OUR OWN POTENTIAL • paleontology • Mongolia • Psittacosaurus • Cretaceous • Velociraptor • Protoceratops • Flaming Cliffs • Gobi Desert • fossils • skeleton n• s a u t u o r e a c l a t h e i r Bolortsetseg Minjin - Mongolian Paleontologist s t C o • r y s • u r M u a o s n o g c o a t l t i E Books. s m P p Dinosaur Lives: Unearthing an Evolutionary Saga (Harvest • i a r i e l o Book) (Paperback) by John R. Horner (Author), Edwin • g d n i n Dobb (Author), Celeste Clair Horner (Illustrator), Bruce Mongolian emblem : the outer rim symbolizes eternity, o o M s Selyem (Illustrator), Terry Panasuk a surrounds a circular blue field, symbolizing the sky. On • u y r g Lone Star Dinosaurs by Louis Jacobs the centre of the field is the soyombo within the wind • o l k o i t horse symbolizing Mongolia's independence, sovereignty, l l i n n o g and spirit. Above the field is a chandmani, representing e Mongolia Websites l c a l p www.sunshine.mn/ mongolia.htm the Buddhist Three Jewels, which in Mongolian folklore a w • • http://www.mongoliatoday.com/ grants wishes, and symbolizes past, present, and future. n o h i t e i Below the central emblem is a green mountain range, with r d http://www.kiku.com/electric_samurai/virtual_ b e i v p the wheel of destiny at the center. -
P0549-P0553.Pdf
SHORT COMMUNICATIONS 549 The Condor 99549-553 0 The Cooper Omithologlcal Society 1997 COMPARISON OF PELLETS VERSUS COLLECTED BIRDS FOR SAMPLING DIETS OF DOUBLE-CRESTED CORMORANTS CLAYTONE. DERBY AND JAMES R. LOVVORN~ Department of Zoology and Physiology, University of Wyoming, Laramie, WY 82071 Abstract. For many fish-eating birds, two types of sample sizes of colonial diving birds in given months samplescan be usedto determine diets of adultsduring or years are usually < 25 and often < 10 (e.g., Baltz both breeding and nonbreedingperiods: esophagus and and Morejohn 1977, Kennedy and Greer 1988, Otten- gizzard contentsof birds collected at feeding sites,and bather et al. 1994), althoughgreater samples are some- pellets (indigestible residue) cast up at roostsor breed- times possibleat wintering concentrations(Glahn et al. ing colonies. We compared these two methods for 1995). Collecting birds also requiresthat all important Double-crested Cormorants (Phalucrocorux auritus) feeding sites be located and sampled. collected on the North Platte River, Wyoming and Gathering pellets at colonies or roosts does not re- nesting at a nearby colony both before and after fin- quire killing birds, can provide integrative samplesof gerling trout were stockedin the river. Before stocking, all feeding sites, and can result in larger sample sizes there were no significant differences between pellets with less time and effort (Veldkamp 1995, Warke and and collected birds in percent massesof different fish Day 1995). However, this method cannot be used if types in different length classes. After stocking, the colonies or roosts are inaccessible(e.g., on cliffs), are two methodsyielded similar resultsfor different length directly over water where pellets cannot be retrieved classes,but differed in relative proportionsof suckers (on pilings, etc.), or have too few birds to yield enough and trout. -
Dinosaurs Alive!
DINOSAURS ALIVE! A 3-D LARGE-FORMAT FILM A Production Of DAVID CLARK INC. GIANT SCREEN FILMS MARYLAND SCIENCE CENTER STARDUST BLUE LLC In Association With AMERICAN MUSEUM OF NATURAL HISTORY and HUGO PRODUCTIONS Narrated By MICHAEL DOUGLAS Final Script 4/4/07 Written by David Clark & Bayley Silleck CGI #1 Fighting Dinosaurs FADE UP on the eroded slope of a semi-vegetated sand dune in the Gobi Desert. The sky, full of menacing clouds, heralds an approaching storm. Sand is blowing. A small, four-legged, crested dinosaur – an herbivorous Protoceratops – ambles into view, looks about for food. Suddenly, from the top of the dune, a carnivorous Velociraptor leaps through the air and lands on the Proto’s back. The shrieking Proto takes off, runs out of frame. Locked in mortal combat, the dinosaurs plunge downhill toward us, getting larger and larger in 3D space. All at once the Proto stops, plants its forelegs in the sand, and throws the Velo off its back. The Velo attacks again, striking at the Proto’s neck and belly with its forelimb claws. The Proto retaliates by seizing the Velo’s neck in its hook-like beak and snapping down hard, then seizes the dangerous forelimb of the Velo in its mouth. Now the dinosaurs are right in our laps, the Proto on top and the Velo on its back, screeching at its adversary, as it sinks one of its toe-claws into the Proto’s belly. Both dinosaurs are fatally wounded. The action FREEZES on their deadly embrace. DISSOLVE to: Interior of Mongolian Museum of Natural History. -
A Curious Pellet from a Great Horned Owl (Bubo Virginianus)
University of Nebraska - Lincoln DigitalCommons@University of Nebraska - Lincoln USGS Staff -- Published Research US Geological Survey 2005 A Curious Pellet From a Great Horned Owl (Bubo Virginianus) Neal Woodman USGS Patuxent Wildlife Research Center, [email protected] Carla J. Dove National Museum of Natural History, [email protected] Suzanne C. Peurach USGS Patuxent Wildlife Research Center, [email protected] Follow this and additional works at: https://digitalcommons.unl.edu/usgsstaffpub Woodman, Neal; Dove, Carla J.; and Peurach, Suzanne C., "A Curious Pellet From a Great Horned Owl (Bubo Virginianus)" (2005). USGS Staff -- Published Research. 619. https://digitalcommons.unl.edu/usgsstaffpub/619 This Article is brought to you for free and open access by the US Geological Survey at DigitalCommons@University of Nebraska - Lincoln. It has been accepted for inclusion in USGS Staff -- Published Research by an authorized administrator of DigitalCommons@University of Nebraska - Lincoln. 2005NORTHEASTERN NATURALIST 12(2):127–132 A Curious Pellet From a Great Horned Owl (Bubo Virginianus) 1, 2 1 NEAL WOODMAN *, CARLA J. DOVE , AND SUZANNE C. PEURACH Abstract – One of the traditional methods of determining the dietary preferences of owls relies upon the identification of bony remains of prey contained in regur- gitated pellets. Discovery of a pellet containing a large, complete primary feather from an adult, male Ring-necked Pheasant (Phasianus colchicus) prompted us to examine in detail a small sample of pellets from a Great Horned Owl (Bubo virginianus). Our analyses of feather and hair remains in these pellets docu- mented the presence of three species of birds and two species of mammals, whereas bones in the pellets represented only mammals.