Mammals Flashcards
Which marsupial is the ONLY marsupial living in North America?
Opossum
What are characteristics of marsupials?
Pouch bearing young
Short gestation period
Young are born very small and poorly developed
What are ungulates?
Hoofed animals aka unguligrade
Artiodactyl
Even-toed
Perissodactyl
Odd-toed
Hippomorphs
Equids - one toe
Ceratomorph
Tapirs and rhinos - three toes
What is specific about the perissodactyl?
Hind gut fermentation
REVIEW BAIRDS TAPIR SLIDE
What are examples of Artiodactyls?
Tylopods - Llamas an camels
Suidae - Pigs, peccaries, babirusa
Ruminants - Antilocapridae (Pronghorn), Giraffidae (Giraffe’s and okapi), cervids (deer), bovids (oxe, antelope)
Hippos
What are tayassuidae?
Peccaries (javalinas) and babirusa
What are characteristics of cervids and bovidae?
Maxillary dental pad
Continuously growing teeth
Four chambered stomach - chewing the cud
What are characteristics of antlers?
Found on almost all male cervids (Caribou - both sexes)
Shed annually
Branch
Fasted growing tissue
- Velvet vascularized soft tissue during growth
- Under control of testosterone
What are characteristics of lagomorphs?
Continuously growing teeth
2 pairs of maxillary incisors
Hindgut fermentation in the cecum
What are characteristics of rodentia?
Means “those that gnaw”
Largest order of mammals
Two incisors on he upper and lower jaw
Incisors grow continuously
