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Bowerbirds!
The bower…
Bowerbird reproductive success
Sperm and egg
Drosophila bifurca: one sperm!
Mormon cricket male with spermatophore
Elephant seals
Male-male competition and sexual dimorphism
Male dung beetle, Phanaeus vindex (Rattlebox photography)
Dung beetle burrows
Dung beetles: two morphs
Bluehead wrasse
Marine iguanas
Midshipmen
Sponge isopods (=sponge lice)
Damselfly scooper penis!
Mating crabs
Mate guarding: Seychelles warblers
Mate guarding: Seychelles warblers (cont.)
Red-backed spiders
Hangfly courtship gifts
Song repertoire: honest signal of chick weight in Sedge warblers
Blue tit
Canary song and physiological condition
Fiddler crab “chimney”
Satin Bowerbirds: multiple signals of health and fitness (and good genes?)
Petrie’s peacock data
Change in female resistance to male
seminal peptides.
Is choosing the larger male maladaptive for female D. melanogaster?
Bedbugs: traumatic insemination
Bedbugs: mitigating effects of spermalege to traumatic insemination