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Because she's hungry. Most Spiders are cannibals and will eat each other if the opportunity arises. However, the only Black Widow species where the female has been observed to eat its mate is Latrodectus mactans, the "southern black widow". And even in this species, it does not always occur.
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∙ 13y ago
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∙ 9y agoFemale spiders may eat their mates because smaller male spiders are more likely to be prey. Larger female spiders will eat their mates because they are simply hungry.
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∙ 15y agotehere are many scientific reasons for the black widow-anonymous actually, it's because they need the nutrition to make the eggs.-hlasdf
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∙ 11y agoThat will balance her diet or he's been a bad boy...
Wiki User
∙ 14y agoBlack Widows do not normally eat their mate. The only time they will is if they are very hungry.
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What do jewel spiders eat?
they eat insects and they are very keen for spiders
Do crickets eat spiders?
Most crickets eat spiders. If the spider is big than no. The common crickets only eat small spiders.
Do spiders eat turtles?
To my experience, in fact spiders do eat turtles.
Do mice eat spiders?
yes mice will eat spiders and small insects.
How often do spiders eat?
There are many different kinds of spiders in the world. These spiders all eat at different frequencies based on their species.
What do spirder eat?
If you at talking about spiders than spiders eat bugs tarantulas may eat small birds and spider eat their husbands after their honey moon
What are spiders' diet?
I think that there are insects that the Spiders eat.
What do grass spiders eat and what eats grass spiders?
grass spiders eat other spiders
Do frogs eat spiders?
yes frogs do eat small spiders
What do spiders eat on a saguaro cactus?
Spiders eat insects
Do crows eat spiders?
yes crows eat spiders
What do jewel spiders eat?
they eat insects and they are very keen for spiders
What do kauai wolf spiders eat?
They eat insects and other spiders
Do crocodiles eat spiders?
only as babies will they eat insects and spiders.
Do some insects eat spiders?
no some insects do not eat spiders
Do jumping spiders eat plants?
Spiders are carnivorous, they eat insects
Do crickets eat spiders?
Most crickets eat spiders. If the spider is big than no. The common crickets only eat small spiders.
