Thursday, October 13, 2011

Katydids In Search Of A Gift

Usually in nature it is the males who actively search out a mate but there are some species where the roles are reversed and it is the females who do the seeking, as is the case with katydids. A new theory as to why this happens suggests that females will search if males offer a lot more than just sperm. In katydids the male produces a large, gooey and nutritious substance that the female eats while the male mates with her. The gift not only benefits his offspring, but distracts the female long enough to ensure that she is fully inseminated, as otherwise she may just eat the sperm packet.
Posted by Astrojenny

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