Humidity makes gecko feet stickier

Geckos have amazingly sticky feet. Their stickability comes from billions of dry microscopic hairs that coat the soles of their feet. However, when humidity increases, gecko feet stick even tighter to smooth surfaces, so ...

Tarantulas shoot silk from feet

Climbing is possibly one of the riskiest things an adult tarantula can do. Weighing in at anything up to 50gm, the dry attachment systems that keep daintier spiders firmly anchored are on the verge of failure in these colossal ...

True colors: Female squid have two ways to switch color

The female common market squid –– AKA Doryteuthis opalescens –– may not be so common after all. Researchers at UC Santa Barbara have discovered that this glamorous cephalopod possesses a pair of stripes that can sparkle ...

Winter diets? The secret is to chill the extremities

It is well known that large mammals living in temperate climates lower their metabolism in winter. But does this represent a mechanism for coping with less food or is it merely a consequence of having less to eat? For the ...

Wide heads give hammerheads exceptional stereo view

Hammerhead sharks are some of the Ocean's most distinctive residents. 'Everyone wants to understand why they have this strange head shape,' says Michelle McComb from Florida Atlantic University. One possible reason is the ...

Discus fish parent young like mammalian mothers

Few fish are famed for their parenting skills. Most species leave their freshly hatched fry to fend for themselves, but not discus fish. Jonathan Buckley from the University of Plymouth, UK, explains that discus fish young ...

A T-Rex of an idea: Dinosaur milk?

(Phys.org)—Did dinosaurs lactate? It's a question physiology expert Professor Paul Else has been pondering for years –15 years in fact.

Amazing skin gives sharks a push

Shark skin has long been known to improve the fish's swimming performance by reducing drag, but now George Lauder and Johannes Oeffner from Harvard University show that in addition, the skin generates thrust, giving the fish ...

Commonly used pesticide turns honey bees into 'picky eaters'

Biologists at UC San Diego have discovered that a small dose of a commonly used crop pesticide turns honey bees into "picky eaters" and affects their ability to recruit their nestmates to otherwise good sources of food.

Questions about incredible sea turtle migration answered

Immediately after emerging from their underground nests on the lush beaches of eastern Florida, loggerhead sea turtles scramble into the sea and embark alone on a migration that takes them around the entire North Atlantic ...

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