Male killer whales hunt more than females

It's hard to tell just how imperilled killer whales are. With several different forms—some of which may even be different species—it's unclear which are at serious risk and which are less vulnerable. But one group is ...

Swifts ride air currents to catch a free lunch

Once an adult swift (Apus apus) leaves its breeding colony and takes to the air migrating south, it won't touch down again until returning home to nest 10 months later. "Common swifts are exceptional in their level of adaptation ...

Strategic strikes by mantis shrimp smash shells selectively

For a tiny crustacean, Caribbean rock mantis shrimp (Neogonodactylus bredini) pack a ferocious punch. Bludgeoning the shells of snails and other crustaceans to gain access to the tasty snail within, mantis shrimp flick their ...

Risso's dolphins plan their dives

Slipping beneath the surface of the water in pursuit of food sets the timer ticking for hungry dolphins; the pressure is on to locate food and make it back to the surface before they run out of oxygen.

Cuttlefish hear bow wave of looming danger

Imagine trying to get close to your dinner only for it to be swept aside by your approach; this is the scenario faced by aquatic creatures every day as they try to snap up a tasty morsel.

Emperor penguins may shorten record fast by snacking

The endurance of emperor penguins, trudging through the perpetual Antarctic night to their breeding colonies, is legendary. Many trek more than 100 km from their ocean feeding grounds to rookeries at inland locations in preparation ...

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