Rodentia. The single largest group of mammals is the rodentia. Most non-flying mammals are rodents. There are about 1500 living species of rodents (out.

Slides:



Advertisements
Similar presentations
Order Rodentia By: Jake Koetsier. Mammal Phylogeny.
Advertisements

Unit 2: Of Skulls and Teeth
Animals 3rd grade Mooreland.
Colorado Wildlife Animals Mrs. Dean’s 4 th Grade Learning Goal: Choose a Colorado animal and describe the characteristics of that animal and.
What is the relationship between these animals?.
MAMMAL SKULLS. GENERAL CLASSIFICATION CARNIVORE  Obtains energy from flesh of other animals.
MAMMALS I.Characteristics A.Body covered with hair 1.As with the feathers of birds, and the “shed” of reptiles, mammal’s fur is made from the protein keratin.
MAMMALS OF SOUTH CAROLINA: RODENTS BIO 402: Field Biology Presentation by Dr. Charles Horn.
Teeth Tell All Animal skulls provide info to scientists – Can identify a species – Many others: Eating habits Size Gender Brain development Health Cause.
Animal Tracking & Animal Sign Environmental Biology.
Rodentia Gnawing Mammals - Andrew Marmo. Skull Characteristics  A pair of upper and lower incisors Single open root Continuously growing  Enamel on.
The Rakali – (Eastern Water Rat) Rodents of the World Rodents of the World Australian rodents Australian rodents Evolution Evolution Rakali breeding Rakali.
Order Rodentia Gnawing Mammals Lindsey Keiser. Order Rodentia Largest order of mammals – Over 2000 living species placed in 30 families – Over 40% of.
Rodentia. The single largest group of mammals is the________________. Most ____________mammals are rodents. There are about ___________living species.
Mammals Natural Resources. Badger Beaver Black-footed Ferret.
Animal Tracks in the Snow. By: Michelle Tufano & Derrick Pfister.
The live lessons of Biology. Lesson We have different animals in school. We taught something about animals on Biology lesson. First the Polish students.
Gnawing Mammals. Mammal Characteristics  Warm – Blooded  Usually have a protective coat of hair and a bony skeleton  Babies are fed milk with mammary.
Barn Owl Tyto alba Barn Owls specialize in hunting small ground mammals, and the vast majority of their food consists of small rodents. Voles (field mice)
OWLS. Barred Owl Anatomy Habitat Food Sights & Sounds (Strix varia)
Rodents By Serenity an Stephany. What is a rodent? A rodent is a rat or squirrel they have sharp teeth that don’t stop growing.
Rodentia: Gnawing Mammals. Rodentia Checklist one pair of upper and lower incisors –each enlarged, sharply beveled, ever-growing –enamel on outer surface.
DIVERSITY OF MAMMALS Chapter 30.2
KEY CHARACTERISTICS OF MAMMALS Zoology. CLASS MAMMALIA 4,400 species Mammals Classified into more than 20 orders, one of which includes humans. Live on.
SWBAT analyze data from owl pellet lab
Copyright © 2006 Thomson Delmar Learning Chapter 23 All the Rest Laboratory Animals and Pocket Pets.
Some Mammals Found on the SMESL Shawnee Mission South HS Overland Park, KS Environmental Science I.
Chapter 43 Mammals Section 3 Diversity of Mammals.
Grizzly Bear By: Jack Lindholm A grizzly bear is a unique animal that lives in the forest.
Warm Blooded Vertebrates Phylum Chordata Class Mammalia
Mammal Skulls Envirothon, Short-tailed shrew Insectivore Red-tipped teeth Venomous mammal. Regular front feet (as opposed to moles) Eat mice.
Mammals Like You!. So What’s a Mammal? Fur & sweat glands Mammary glands (milk) Endothermic.
Capybaras by Larissa Knight Class: 2F
Grey Wolf The Powerful Hunters By: EJ.
Virginia Opossum Order: Marsupialia Family name: Didelphidae
6/14/2011 Kit Fox By: Frinee, Aryana and Ayantu. 6/14/2011 What does this animal look like?
Land Biomes Of the World
Have a single pair of continuously growing incisors in both the upper and lower jaws. Have a diastema, or a gap between the incisors and the cheek teeth.
ANIMALS THAT HUNT UNITED STATES. THREE MAIN HUNTERS.
Mammals Of Alabama BY CHELSEE DAVIS and LACEY GARDNER.
Mammals Small mammals stripes pointy ears= Eastern chipmunk.
Is It A Myth That Foxes Are Sneaky ? By Finley Toebben.
Temperate forest The temperate forest is in north america.
Mammals.
12 orders of placental mammals 12 orders of placental mammals.
SCIENCE 7 TOPIC 13. WARM-BLOODED VERTEBATES INCLUDES THE BIRDS AND…
The Rodents ORDER RODENTIA. Teeth Incisors Diastema Molars Malocclusion.
how to determine the skull type using a dental formula
What is the relationship between these animals?
Chapter three Placental mammals
Pocket Pets All you need to know about these small critters!
ORDERS OF MAMMALS Classified by: Structure of teeth, number and kinds of bones in the head, and method of reproduction. M0NOTREMES: Egg laying mammals:
Pocket Pets: Murines, Hamsters, Guinea Pigs
Where the Red Fern Grows
Rodent Identification Practice
Mammals.
Mammals.
Rodentia: Gnawing Mammals
THE UNIVERSITY OF DODOMA
Vertebrate Zoology Mr. Walker BHS
Mammal Identification
Diversity of Mammals.
North American Wildlife
Class Mammalia.
Small Mammals By: Dustin Carnahan.
Class Mammalia.
Owls you can see in Marquette County
All images are from Wikimedia Commons, unless otherwise identified
Friday 2/7 Pop Quiz #4 Rodent pics
Vertebrate Zoology Mr. Walker BHS
Presentation transcript:

Rodentia

The single largest group of mammals is the rodentia. Most non-flying mammals are rodents. There are about 1500 living species of rodents (out of 4000 species of mammals).

Rodentia Most people are familiar with mice, rats, hamsters, and guinea pigs. Rodentia also includes beavers, muskrats, porcupines, woodchucks, chipmunks, squirrels, prairie dogs, and chinchillas. Rodentia does NOT include rabbits (they are different from rodents in that they have an extra pair of incisors and other different skeletal features).

Rodentia Rodents are found native on all continents except Antarctica. One family of rodents, the Muridae, contains over 1100 species. These are mice and rats.

Rodentia Rodents show their greatest diversity in South America. Some of these include: –mountain viscachas (which are rabbit-like animals that live in the moutains) –Patagonian cavies (which are rabbit-like, fast-running animals with long ears and a short tail) – the coypu (which is a marsh-dwelling animal that is hunted for its fur), –burrowing animals like the pacas and tuco-tuco.

Mountain viscachas

Patagonian cavies

Coypu

Paca

Tuco-tuco

Rodent The capybara, which also lives in South America, is the largest living rodent. It is about the size of a pig and gets up to a weight of about 110 pounds. They live in the plains of South America and are often hunted or ranched for their meat.

Capybaras

Rodent All rodents share common features. They have a single pair of incisors in each jaw, and they grow continually throughout life. The incisors have thick enamel layers on the front but not on the backs; this causes them to retain their chisel shape as they are worn down.

Rodent Behind the incisors is a large gap in the tooth rows, or diastema. There are no canines, and typically only a few molars at the rear of the jaws. Rodents have unique chewing patterns and they also have large jaw muscles to help with this.

Rodent Male rodents have a baculum, which is a penis bone. Most rodents are herbivores, but some are omnivores while others eat only insects. Rodents live in many different places, such as trees and burrows. They can also be found in some aquatic habitats and also in the desert. They can be solitary, like the porcupine, or live in highly-social groups, like prairie dogs.

Rodent Rodents cost billions of dollars in lost crops each year. Some are also carriers of human disease such as bubonic plague, typhus, and Hanta fever. Some rodent species are economically important as sources of food or fur. Others are used extensively in biochemical research (ie. NOD- SCID, C57-Bl6, and nude mice).

Eastern Chipmunk Tamias striatus

Gray Squirrel Sciurus carolinensis

Beaver Castor canadensis

Alabama Beach Mouse Peromyscus polionotus ammobates

Black Rat Rattus rattus

Mouse

Rat

Squirrel

Chipmunk

Vole

Kangaroo Rat

Gopher

Porcupine

Beaver

Hamster

Lemming

Jerboa

Gerbil

Guinea Pig

Chinchilla

Prairie Dog

Pocket Mice

Mole Rat

Groundhog

Capybara

Marmot

Muskrat