 Endothermic  Warm-  Permits high level of activity at (regardless of outside temperature)  Females have  Function:  About  Ex: cats, dogs, humans, dolphins, elephants, kangaroo, whale, bat, rabbit, beaver, wolf, seal,

 High  Body  In some, hair is reduced in size –  All have an integument  Contains: sweat,

 Breathe  Excrete  Separate  Young (made by the mammary glands)  Many  These are areas from which individuals of the  Will often resort to

 Rodents  Ex: mice, squirrels,  Have two razor  Lagomorpha  Ex: rabbits,  All  Hominids  Ex: humans, gorilla,  Insectivora  Ex:  Diet

 Carnivora  Ex: weasels, seals, walruses, dogs,  Highly  Contain teeth  Proboscidea  Ex:  Largest of

 Perissodactyla  Ex: horses, donkeys,  Often referred to as  Cetacea  Ex: dolphins,  Limbs are modified  Live in

 Skeleton  Skeletal/bone make-up allows for: High- Swimming climbing Movement of digits (fingers/toes) to  Joints allow for

 Hair:  Has  Purpose of hair: Spines of porcupines— Hair of most animals— Vibrissae (whiskers)— Slightest movement indicates

 Moveable  Fleshy  Well-developed  The largest brain in  Cerebrum -  High evolved brain allows for highly developed memory and capacity to

 Highly elaborate  Provide mammals with a high level of  Senses: taste, smell,  Most have  Many  Many will use Ex:

 Teeth  Mammalian teeth are both  Mammals are  Specialized for variety of functions: Includes: grind, stab, scissor,

 Teeth, cont.  Teeth in mammals come in Incisors, Not all  Use this variety to eat  Most placental mammals have between 20 and 40 teeth, while most  As a general rule animals that feed on insects have more teeth than

 Contain a  Separates air passageway  Allows mammals to hold (and partially break down food) in

 Have many  Insectivores are  Herbivores have Groups: Have large molars  Carnivores have Adapted for  Other adaptations:  Ruminants (cattle, bison, goats)

 Energy and Wastes  Require much energy  Produce a variety of  Digestive tract  If mammals eats only Why? takes longer to  If eat only meat,

 Require a  2 organ adaptations for this:  Diaphragm: Muscle that contracts and therefore  Four-chambered heart: Separates blood into

 All have  3 groups of Mammal life cycles: Marsupials: 3.

 Placental: Develop inside % of mammals are this Placenta—organ which allows for nutrients,

 Placental  Placental, cont.: Gestation period—time that embryo Humans: 9 months, Elephants:, Mice: Mammary gland—young Ex: humans, dolphin,

 Marsupials:  Give birth to small, immature young that  Mothers can move around and look for food  Ex: kangaroo,  Monotremes:  Mammals that  Incubate  Ex: