Mammals. It’s all about hair and milk. Traits. Hair Endotherm (high metabolism) Nurse offspring Single jaw bone 3 middle ear bones. Mammals have Hair. Hair is unique to mammals Evolved from scales Provide insulation and waterproofing Some change color for camouflage
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It’s all about hair and milk
Hair is unique to mammals
The ability to maintain body temperature has allowed mammals, like birds, to live in almost every possible environment on earth.
for different environments
skin & lapped up
Clockwise from far left: Echidna puggle, echidna hatchling, platypus puggles
Kangaroo, wallaby, wombat, Tasmanian devil, koala
Artiodactyla (even-toed ungulates: pigs, deer)Orders of Placental Mammals
Ear & nose shape maximize reception
Echolocation tells bats the size, location, direction of travel, & speed of preyEcholocation
One little brown bat can eat up to 1,200 mosquitoes in one hour
The smallest animal in the world is the bumblebee bat –it weighs less than a pennyInteresting Bat Facts