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new frog species reproduces like no other
amphibian
amphibians
anatomy
behavior
fanged frog
internal fertilization
mating
science
sex
sex and reproduction
source
these mice excel at assembling the ideal sperm swim teams
deer mouse
science
sex and reproduction
sperm
sperm competition
source
placenta evolution and a sexual cold war
evolution
guppies
placenta
poecilids
science
sex
sex and reproduction
source
where’s all the animal vagina research?
animal behaviour
animals
bias
female
genitalia
science
sex
sex and reproduction
vaginas
source
the secret ingredient in eau de goat
animal behaviour
animal communication
animals
goat
male effect
pheromone
science
sex and reproduction
source
these sea slugs penetrate each other in the head during sex
animal behaviour
animals
head
nudibranch
penetration
penis
science
sea slug
sex and reproduction
traumatic insemination
source
why a little mammal has so much sex that it disintegrates
animal behaviour
evolution
life history
science
sex and reproduction
source
the tenuous beginnings of men
evolution
science
sex and reproduction
source
fish
sometimes you just have to shave off a fish’s genital claws
evolution
genital claws
guppies
science
sex and reproduction
shaving
info
source
how chickens lost their penises (and ducks kept theirs)
anatomy
animals
bird
birds
chicken
duck
evolution
penises
science
sex and reproduction
source
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