BISC 101 Lecture Notes - Lecture 2: Orthetrum, Charnia, Necrophilia
30 Dec 2017
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Document Summary
An egg fertilized by sperm outside body. In the pre-cambrian seas (540 millions of years ago) charnia and funisia broadcast sperm and eggs into the water like modern corals. Bonus sexual cannibalism refers to a female cannibalizing (eating) her male mate prior, during or after copulation. Australian red backed spider males perform somersaults over females" mouthparts encouraging her to eat him. Angular sh male bites onto female and fuses with her connecting to her bloodstream and losing his eyes, ns etc. Necrophilia explosive breeding leads to intense aggressive interactions among males attempting to gain access to females. Many females die by drowning during long mating struggles- obviously detrimental to female. Many males have sex with dead females- why because males after sex, do cpr to push egg out of female. Orthetrum cancellatum penis had barbed whip. Weird shape penis because to maximize the chances of the male being the father.
