Two Truths, One Lie

Which fascinating fact is actually a fib?

1. Some jumping spiders can leap 50 body lengths. If a jumper were human-sized — eek! — it could leap halfway across a football field.
2. To trap flies, beetles, and other small insects, jumping spiders weave a sticky, rectangular web that looks like a small fishing net.
3. To charm a mate, male jumping spiders dance by waving their legs in the air and shaking their back ends.