Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
19 Cards in this Set
- Front
- Back
|
Gibbons adapted to the environment by =
|
small for quickness. long fingers short thumbs for hook like on branches, ischial callosites
|
|
|
Gibbons sexual dimorphism =
|
little sexual dimorphism bc males don't compete. Males and females are very monogamous
|
|
|
Orangutans solitary lives=
|
b/c to have a chance at survival they have to spread out over large spaces to find hard to find fruits.
|
|
|
Orangutan phlanged/unphlanged males =
|
phlanged males have air pouches in cheeks that allow for loud territorial calls to attract estrous females
unphlanged males = no cheek pads, find females and force (rape) copulation |
|
|
How do male gorillas show dominance =
|
tightening his lips and staring. growl, pant, show teeth and walk stiffly. 'pock-pock' sound by beating on chest
engage in Bluff Charge, Rush Charge, Slam Charge. |
|
|
How do male gorillas show submission =
|
cowering on the ground with backs exposed and belly covered, tuck their lips, yawn and avoid that dominant animals gaze
|
|
|
gorillas =
|
nonarboreal, gentle. polygymous. male maintains a range for his family unit.
strong bond b/w males and females |
|
|
Courtship and mating patterns in gorillas -
|
females get attention from highest ranking male (not relative), presents her rump. Can copulate front to rear of face to face. Mate in middle of group.
|
|
|
When a male gorilla becomes a silverback =
|
the male may leave group and be solitary - or stay and team up with dominant male to keep other males out.
|
|
|
Stabilizing force in the gorilla group =
|
dominance of male silverback
|
|
|
Dominance in common male chimps =
|
charging display, hair erect, drag a branch or club.
Always changing- never constant after met - they groom eachother |
|
|
Common Chimps =
|
knuckle walkers, lots of facial expressions, males have strong bonds, but females dont.
|
|
|
Chimp party =
Chimp community = |
3-6 often related individuals that stay together most of the time. Part of larger COMMUNITY=15-20 with 150 sq miles.
|
|
|
Female Chimps =
|
migrate to new communities to be successful she enlists the protection of some resident male or teams up with member female.
|
|
|
Chimps Raiding Parties =
|
hunt monkeys, leave in silence with 4-6 males. surround a tree.
Driver climbs the tree to keep the monkey moving Blockers=take up positions in surrounding trees Chaser=spring up the tree to catch Ambusher=old chimp who anticipates where monkey will flee. |
|
|
Why do male common chimps stay within their community?
|
lone chimps are attacked and killed by border patrol parties.
|
|
|
Bonobo Society compared to chimps=
|
slimmer
easier at walking upright dont fear water female dominance sex no male bond |
|
|
Bonobos and sex
|
always receptive
variable, not stereotypic females and females(toavoid conflict), males and males |
|
|
Language in Chimps
|
can use symbols and use in strings, but not abstract of complex.
|
