Mammals are vertebrates that include deer, rabbits, squirrels, coyotes, dolphins, and whales, with an estimated 6500 living species (+/- 500 species). The Class Mammalia evolved around 225 million years ago based on current evidence. Characteristics of Mammalia generally include hair or fur, warm-blooded, live birth, mammary glands, and more complex brains.
Kingdom: Animalia
-Phylum: Chordata
–Class: Mammalia
I have photographs 39 Mammals across 8 Orders so far:
Order: Artiodactyla (Deer, Pronghorn)
–Mule Deer (Otocoileus hemionus)
–Pronghorn (Antilocapra americana)
–White-tailed Deer (Odocoileus virginianus)
–Wild Boar (Sus scrofa)
–Elk (Cervus canadensis)
–American Bison (Bison bison)
–Icelandic Sheep (Ovis aries)
Order: Carnivora (Wolves, Bears)
–Bobcat (Lynx rufus)
–Cascade Red Fox (Vulpes vulpes cascadensis)
–Coyote (Canis latrans)
–Mongoose (Herpestes javanicus)
–Raccoon (Procyon lotor)
–Arctic Fox (Vulpes lagopus)
–Gray Seal (Halichoerus grypus)
–Harbor Seal (Phoca vitulina)
–Tayra (Eira barbara)
Order: Cetacea (Whales, dolphins)
–Humpback Whale (Megaptera novaeangliae)
–Atlantic Bottlenose Dolphin (Tursiops truncatus)
–Orca (Orcinus orca)
Order: Cingulata (Armadillos)
–Nine-banded Armadillo (Dasypus novemcinctus)
Order: Didelphimorphia (Opossum)
–Virginia Opossum (Didelphis virginiana)
Order: Lagomorpha (Rabbits, Hares)
–Eastern Cottontail (Sylvilagus floridanus)
–Riparian Brush Rabbit (Sylvilagus bachmani riparius)
–Brazilian Rabbit (Sylvilagus Brasiliensis)
–Swamp Rabbit (Sylvilagus aquaticus)
Order: Perissodactyla (Horses, Zebras)
–Horse (Equus caballus)
Order: Primates (Monkeys, Apes)
–Japanese Macaque (Macaca fuscata)
Order: Rodentia (Rats, Mice, Squirrels)
–California Ground Squirrel (Otospermophilus beecheyl)
–Cascade Golden-mantled Ground Squirrel (Callospermophilus saturatus)
–Eastern Chipmunk (Tamias striatus)
–Eastern Gray Squirrel (Sciurus carolinensis)
–Fox Squirrel (Sciurus niger)
–Central American Agouti (Dasyprocta punctata)
–Red Squirrel (Tamiasciurus hudsonicus)
–Pine Squirrel (Genus Tamiasciurus)
–Black-tailed Prairie Dog (Cynomys ludovicianus)
–13-lined Ground Squirrel (Spermophilus tridecmlineatus)
–American Beaver (Castor canadensis)
–Cotton Rat (genus Sigmodon)
–Western Dwarf Squirrel (Microsciurus mimulus)
–Red-tailed Squirrel (Sciurus granatensis)
–Eastern Meadow Vole (Microtus pennsylvanicus)