A samurai wasp (Trissolcus japonicus) lays an egg inside a brown marmorated stink bug (Halyomorpha halys) egg. The samurai wasp's offspring will develop inside the pest's egg and emerge as an ...

An ancient wasp may have used an odd structure at its rear end to capture insects and lay its eggs on or inside of them, according to a new study published Thursday in BMC Biology. Researchers ...