A new analysis of an exquisitely preserved fossil that lived half a billion years ago suggests that arachnids – spiders and their close kin – evolved in the ocean, challenging the widely held belief that their diversification happened only after…
A new analysis of an exquisitely preserved fossil that lived half a billion years ago suggests that arachnids – spiders and their close kin – evolved in the ocean, challenging the widely held belief that their diversification happened only after…