Kill their own species?

[Nebulous's iconNebulous]

What other creatures besides humans kill their own species?

 

[Jazzy]

Black Widow spiders - Theres a reason they are called widows. The females of the species eat their male partners after mating.

 

[duskpire]

Black Widow spiders - Theres a reason they are called widows. The females of the species eat their male partners after mating.

I think the praying mantis is the same. 

 

[Elvira]

Hamsters, unless I'm wrong. I can't Google it right now.

One of our pet hamsters ate their one baby I think.
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Hamsters, unless I'm wrong.  I can't Google it right now.

One of our pet hamsters ate their one baby I think.

I was correct.

 

[Evil Eye]

Chimps: http://www.newscientist.com/article/mg22229682.600-only-known-chimp-war-reveals-how-societies-splinter.html