In starfish, an oxytocin-type molecule seems to help them turn their stomachs inside out so they can eat. Oxytocin and its close molecular sibling vasopressin have gotten a lot of press and ...

Swimming crabs were observed eating juvenile crown-of-thorns starfish in aquarium experiments. (Supplied: Kennedy Wolfe)Dr Uthicke said the booms happened every 15-17 years, although scientists ...