Vaughan, T. Third Edition. Saunders College Publishing, Fort Worth. Ryan, N. Fourth Edition. Saunders College Publishing, Philadelphia. Wilson, D. Smithsonian Institution Press, Washington. Animals with bilateral symmetry have dorsal and ventral sides, as well as anterior and posterior ends. Synapomorphy of the Bilateria. Endothermy is a synapomorphy of the Mammalia, although it may have arisen in a now extinct synapsid ancestor; the fossil record does not distinguish these possibilities.
Convergent in birds. To cite this page: Myers, P. Disclaimer: The Animal Diversity Web is an educational resource written largely by and for college students. ADW doesn't cover all species in the world, nor does it include all the latest scientific information about organisms we describe. Though we edit our accounts for accuracy, we cannot guarantee all information in those accounts.
While ADW staff and contributors provide references to books and websites that we believe are reputable, we cannot necessarily endorse the contents of references beyond our control. Rodentia rodents Facebook. Literature and references cited Carleton, M. Glossary bilateral symmetry having body symmetry such that the animal can be divided in one plane into two mirror-image halves. Read more Classification Kingdom Animalia animals Animalia: information 1 Animalia: pictures Animalia: specimens Animalia: sounds Animalia: maps Most members burrow and create complex tunnel systems with multiple openings.
Kangaroo rats and pocket mice can survive without water for long periods of time. Family Dipodidae. This family contains 15 genera and 51 species. Members of this group are distributed across the northern hemisphere through Asia, Africa and North America. There is great diversity in this group, especially in the structure of the hind foot and life history. The jumping mice have an elongated hind foot designed for jumping, whereas the birch mice have a simple hind foot.
Members of the group can be terrestrial and semiarboreal. Most family members are omnivorous feeding on seeds and insects. Family Erethizontidae. There are 12 species from 4 genera within this family which contains the New World Porcupines, including the North American Porcupine Erethizon dorsatum. Members of this family are also distributed through Central America and northern Argentina. They occupy a variety of habitats including grasslands, deserts, forests and woodlands.
They are large, heavy-set rodents, weighing up to 18kg. The information given is for general information and should not be regarded as advice in any matter. ACS Distance Education disclaims all and any liability in relation to any act or omission which is done in reliance to the information provided in this web site.
While every effort is made to ensure that we display correct information on our website, errors can occur. Owners may be underestimating their dog's Some major examples of crops with these so-called 'transgenes' include Reducing the Cost of Plant Improvement. Print Email Share. Most Popular Stories. Just a Game? You Need a Chickadee Brain.
Living Well. Differences Between Rats and Muskrats. My carpet has been chewed by rats. Q What could have done this? Would it be in the house? Roof Rats. House Mice.
0コメント