(They may be attractive to mates because malarial or sick animals develop pale faces.) They have a long, shaggy coat ... bald uakaris have very short tails, but move nimbly in the trees without ...

There are some very big differences, both in appearance and behavior. Adult nutria are about two feet long and have a long, rat-like tail that can reach up to 18 inches long. They have long white ...

Techniques for blood collection from the rat include puncture of the heart, retro-orbital plexus, jugular vein, saphenous vein, tail blood vessels ... tube. Rats have a total blood volume of ...