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The Spiders That Choose Death

The Spiders That Choose Death
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Luciana Baruffaldi , Sean Mccann , Mercedes Burns , Maydianne Andrade , Catherine Scott , Laura Sullivan Beckers , University Of Toronto , University Of Maryland At Baltimore , Murray State University , Lenka Sentensk , Murray State ,

Female black widow spider mates with and eats multiple males

Female black widow spiders often mate with and eat only one male – but in one species the female will mate again, meaning males die even though they may not father offspring ....

Luciana Baruffaldi , University Of Toronto , Ken Jones University Of Toronto At Scarborough , Christa Lest , South American , Widow Spider , Sexual Cannibalism , Animal Behaviour , பல்கலைக்கழகம் ஆஃப் டொராண்டோ , தெற்கு அமெரிக்கன் ,

Female black widow spiders start EATING their partner before they've even finished mating

Female black widow spiders start eating their partner in the middle of sperm transfer during copulation, a new study shows.
Researchers in Canada have described the disturbing mating behaviour of a black widow spider species endemic to South America, called Latrodectus mirabilis.
Cannibalism between the two sexes is initiated by females through leg grasping and piercing during mating , they reveal from lab observations.
Overall, 70 per cent of females cannibalised their first mate, they observed, but this number jumped to 85 per cent if the female had mated previously.
The freshly deceased cannibalised male might also be less likely to become a parent, because the female is then free to copulate with other males. ....

United States , Piedras De Afilar , Luciana Baruffaldi , Nathan Burke , Clemente Estable Institute Of Biological Research , University Of Toronto , South America , Pine Rockland , Zoo Miami , Clemente Estable Institute , Biological Research , Behavioural Processes , Professor Holwell , Current Biology , ஒன்றுபட்டது மாநிலங்களில் , நாதன் பர்க் , பல்கலைக்கழகம் ஆஃப் டொராண்டோ , தெற்கு அமெரிக்கா , பைன் ராக்லேண்ட் , ஸூ மியாமி , உயிரியல் ஆராய்ச்சி , நடத்தை ப்ரோஸெஸஸ் , ப்ரொஃபெஸர் ஹோல்வெல் , தற்போதைய உயிரியல் ,