Exam 1 Flashcards
(139 cards)
evolved in North America 40 million years ago; looked like a cross between a weasel and a fox; extinct 15 million years ago
Hesperocyon
about 34 million years ago; larger hyena-like animals with large jaws and strong teeth; extinct 2.5 million years ago
Boraphagines
includes all living species of canines
Canines
What was the first animal domesticated?
dog
genus of dog
Canis
species of dog
lupus
subspecies of dog
C. l. familiaris
Where were dogs first domesticated?
East Asia, perhaps China
the point at which the care, feeding, and breeding of a species come under the control of people
domestication
occurs when humans become the primary selection agents in the evolution of a specie
domestication
dogs have lived with humans for at least ____ years
15,000
cats were domesticated _____ years ago
~9,000
benefits for humans when dogs lived around them
- security around their encampment
- detection of visitors and act as a warning system
humans adopted _____ as a way to feed rapidly growing populations (food and clothing)
animal husbandry
explains how species have adapted to their environment
variation and natural selection
What were the behavioral modifications from domestication?
- changes in response threshold to certain stimuli
- increased docility and adaptability
- perpetuation of infantile behavior patterns
- trend to promiscuity rather than pair-bond matings
how many species of the cat family?
38
largest species of cat
Siberian tiger
smallest species of cat
black-footed cat
genus of cats
Felis
species of cats
F. silvestris
subspecies of cats
F. s. catus
the process by which two species evolve in concert
coevolution
the major subdivision of a genus and composed of individuals that can successfully breed with one another
species