A 12-gauge shotgun with magnum No. 2 loads or buckshot is a lethal weapon at ... to handle and skin predators with care. Bubonic plague carried by the fleas is on the increase in some parts of the ...

Early Cambrian fossils reveal how a small, shelled animal evolved to deal with attacks ... The prey, in turn, adapt to the new weapons predators develop. Confirming an arms race requires having ...

Predators would have had to flip the ... did more than deflect blows—they could also be used as weapons. At the end of the animal's tail, a series of plates were fused together and held aloft ...