Dogs provide an interesting proof of evolution. Consider the astonishing variety of different dog breeds. There is the tiny Chihuahua, about six inches tall and weighing under six pounds. And other dogs are enormous, with [...]
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Spiders adjust courtship signals for maximum effect
Communication is important in any relationship, but for spiders, it can be a matter of life or death.
After all, a male spider needs to convince potentially cannibalistic females that he is a suitable mate and not a meal. And new research from…