Narwhals grow long tusks, if they have the balls to do it. The spear at the end of the male sea unicorn has been variously thought to be a sensory organ, a device for battling other males, or an ...

For one of the most mysterious animals in the oceans, size really does matter. That's the upshot of a new study that finally answers why, unlike every other whale alive today, narwhals evolved their ...

March 18 (UPI) --The unicorn-like tusk of the narwhal whale is an element in sexual selection, and size matters, a study published on Wednesday indicates. The male narwhal, which typically grows to ...

Narwhals are often referred to as the ‘unicorns of the sea’ because of the unicorn-esque tusks they grow on their heads. There’s no question that the narwhal’s discernible tusk makes it one of the ...

A new study suggests that narwhal tusk size is indicative of testicle size and fertility. Narwhals' tusks, which are actually single teeth atop their heads, are directly correlated to teste mass, ...

Showy peacock feathers, extravagant elk antlers and powerful crayfish claws are just a few examples of the ostentatious animal extremes used to compete for and attract mates, a process called sexual ...

A ballsy new study may have unlocked the secret behind narwhals’ unicorn-like tusks, or the single tooth found atop males’ heads. Researchers studied the testicle size of 144 narwhals collected during ...

Freelance writer Amanda C. Kooser covers gadgets and tech news with a twist for CNET. When not wallowing in weird gear and iPad apps for cats, she can be found tinkering with her 1956 DeSoto. When it ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. When you’re in the dating game, sometimes you develop a type ...

The long, spiral tusks of narwhals could be used by these Arctic whales to stun or even kill prey, according to wildlife researchers who have spied on these elusive creatures using drones. They ...