It’s an octopus-eat-octopus world. Scientists have discovered that when mating, male blue-lined octopuses will inject a powerful, incapacitating neurotoxin into the hearts of female octopuses ...

The males have evolved to use a venom called tetrodotoxin (TTX) to immobilize females, which are normally around twice their size and commonly eat their ... But while other octopus species have ...

Several blue-ringed octopus species use tetrodotoxin as a powerful weapon to quickly immobilise and kill their prey. Receive a weekly dose of discovery in your inbox! We'll also keep you up to ...

Revealing the Stunning 2.33-Carat Winston Red Diamond 8 Mind-Boggling Facts About the Octopus What Is an Aurora? National Treasure: The Fearsome Science Behind the T. rex, the King of the ...