This is the only fossil ever discovered that shows a spider attacking prey in its web. Preserved in amber, it’s about 100 million years old. (Photo courtesy of Oregon State University)
A Cretaceous period juvenile spider was trapped in amber before it could devour a male wasp caught in its web. This is the first time that such a scene has been found in the fossil record.
Read more @ SciTechDaily
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That looks like part of a bigger spider’s leg to the right……