process by which unrelated organisms independently evolve similarities when adapting to similar environments.
have lower jaw composed from just one bone.
structure through which feces, urine and gametes pass.
4 types of mammal teeth
incisors, canines, pre-molars, molars
Captain James Cook
English navigator who claimed the east coast of Australia for Britain and discovered several Pacific islands (1728-1779). He also claimed he heard rumors of giant flightless birds on the islands of New Zealand.
dinosaurs became extinct.
Sirenia that lives in the coastal waterways of Florida and feed upon aquatic plants such as hyacinths.
Characteristics of birds
thin hollow bones, high metabolism, 4 chambered heart.
2 of 3 bones in the middle ear of mammals was once part of the jaw of a reptile.
digestive organ in burds that crushes and kneads food.
3 subclasses of Class Mammal
Monotreme, Marsupials, Placentals
American writer whose experiences at sea provided the factual basis of Moby-Dick (1851), considered among the greatest American novels
mammals who give birth to tiny, immature young and then develop in the pouch of their mommy.
animals that have odd number of toes on their feet such as zebras, rhinos and tapirs.
where we find most of the Marsupials.
shrews and moles
part of the day when the first mammals were probably active.
bobcats, black bear, coyotes: these can be found in Ohio.
Change in climate; Humans (Native Americans)
2 major causes of the extinction of many ice age mammals in the Americas 10,000 years ago.
50,000 years ago
humans reached Australia
loved natural history so much he was accused of turning the White House into a museum.