why sex video
how are bonobos and chimps different in reproductive anatomy
bonobos have mixed sex parties, receptive for alot of cycle, chimps have large testes and large tubuoles
how are bonobos and chimps different in social structure
chimps are violent especially when mates deny them, patriarchal, and known for infanticide, bonobos have peaceful bonds, and female alliances to dominate men
how are bonobos and chimps different in sex
chimps have higher quality sperm, not fun sex, 5+ copulations per day, bonobos have fun sex in many positions
what was vrijenoeks explanation for the fish
cloned fish stopped evolving and became an easy target, sexual reproducers are a moving target for parasites
what was unusual about Johnsons texas lizards
different reproductive strategy with no contribution from a male, and babies are all cloned. all females
according to Emlen monogamy is a social solution to what biological dilemma
females need help from males, females know which ofspring is theirs
take home message of researchers observations on jacanas
gender roles arent set stone way, gender roles determined by species
why would female songbirds cheat
higher quality males, give offspring higher survival odds and better genes
what experiments were done to understand peacock tail evolution by Petrie
how long peacock tail is because females were interested in male with best genes, number of eyes on peacock feathers, and paired male with female peacock because offspring of long tailed more likely to survive
what are some features now seen in female jacanas
larger more aggressive, will defend mates, pursue males
what did vrijenhoek find with respect to number of parasites that feed on each type of reproducing fish in sonora
minnows were infected with parasite causing disease while rest were unaffected. sexual reproducers had higher amount of parasites compared to asexual reproducers
why is variation so important
sex=diversity which makes it difficult for parasites to infect when new genetically different organisms are made. variation causes higher chance of survival for a specific organism.
how are bonobos and chimps similar
they look alike, eat similar things, live in similar community style
how are bonobos and chimps different in feeding ecology
this could be why behaviors are different, chimps eat food high up and bonobos eat ground herbs
how does differences in chimps and bonobos reflect events from 2 million years ago
weve evolved to our surroundings, drought killed off gorillas and chimps and only chimps came back and consumed ground food and then evolved into bonobos, the drought possibly forced out early humans
