Rodentia is an order of mammals (Mammalia). Members of the order Rodentia are called rodents.

Size and range of order

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In terms of number of species — although not necessarily in terms of number of organisms (population) or biomass — rodents make up the largest order of mammals, with over 40 percent of mammalian species belonging to the order. Their success is probably due to their small size, short breeding cycle, and ability to gnaw and eat a wide variety of foods.(Lambert, 200)

There are between 2000 and 3000 species of rodents, which are found in vast numbers on all continents except Antarctica (they are the only placental order other than bats, (Chiroptera), to reach Australia without human introduction), most islands, and in all habitats except for oceans.

More on [ Rodent ]

MSNBC.com: Pet health

Animal shelter mistakenly euthanizes family pet
Wed, 25 Jun 2008 18:48:43 -0000
Animal Control officials in Michigan have apologized to Anette Hetzer for accidentally euthanizing her dog last week.
The sound of fear: Noise phobias torment dogs
Mon, 23 Jun 2008 12:34:45 -0000
Up to 20 percent of dogs of all ages and breeds suffer from noise phobias so severe that their people seek professional help for them. Thunder and fireworks are the most common causes.
Pet food seized at PETCO warehouse
Thu, 19 Jun 2008 23:54:30 -0000
Federal marshals carrying a search warrant visited the Joliet distribution center of PETCO Animal Supplies Inc. on Thursday, seizing animal food products that were allegedly contaminated.
Beaten-down dog from Vick case has his day
Tue, 17 Jun 2008 21:44:26 -0000
Leo, a pit bull rescued from Michael Vick’s dogfighting ring, now soothes cancer patients as a therapy dog in California.
Criticism halts 'Black is beautiful' pet promo
Thu, 12 Jun 2008 18:32:44 -0000
An animal shelter pulled the plug on a program promoting the adoption of black cats and dogs after criticism that the event would have taken place the same week as a holiday commemorating freedom for enslaved blacks.
Dog sucked up by street sweeper
Sun, 15 Jun 2008 01:14:10 -0000
A street-sweeping truck roaring down a Bronx street sucked up a dog and killed her as her owner held the leash.

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