Walking like ants gives spiders a chance

Humans aren't the only actors on the planet. To avoid being eaten, some jumping spiders pretend to be ants, according to Science Daily.

Ants are aggressive at defending themselves: They are well-armed with bites, stings and formic acid. Ant-mimicking jumping spiders -- Myrmarachne formicaria -- in contrast, can't do much more than run on their eight legs when attacked. Not surprisingly, insect predators tend to prefer spiders over ants, so appearing to be an ant confers significant protection.

Studying how bats hunt in flight

For the first time, researchers are studying how bats manoeuvre when they capture their prey in flight, according to Science Daily.

Biologists, are studying how long-eared bats manoeuvre when they hunt and catch prey, such as insects. Per Henningsson, a researcher, said:

"The way bats perform in flight is a real feat, because it requires high precision at speed, and they must also consider wind, turbulence, foliage and other nearby obstacles," he says.

A twist in the Tail: Flying Fish Give Clues to 'Tandem Wing' Airplane Design

Ribbon halfbeak are a species of fish with the ability to fly above the sea surface -- but unlike true 'flying fish', they lack the necessary hind wing fins. So how do they fly? Dr Yoshinobu Inada says, "Investigating the design of ribbon halfbeak could provide useful information for the optimal design of tandem wing airplanes."

According to Science Daily, Dr Inada and his research team present new research on how these fish twist their bodies in order to take flight.

Birds become immune to influenza

An influenza infection in birds gives a good protection against other subtypes of the virus, like a natural vaccination, according to a new study.

Water birds, in particular mallards, are often carriers of low-pathogenic influenza A virus. Researchers previously believed that birds infected by one variant of the virus could not benefit from it by building up immunity against other virus subtypes. However, the recent study concludes that mallards infected with a low-pathogenic virus build up significant immunity and resistance to other variants of the same virus.

"It was previously thought that the birds were not particularly good at protecting themselves against subsequent infections, but in fact they manage quite well," says Neus Latorre-Margalef, a biologist.

The Trouble with Being a Handsome Bird

Male birds often use brightly colored plumage to be attractive to females. However, such eye-catching trimmings may also attract unwanted attention from predators. Now, a new study has found that showy males indeed perceive themselves to be at a greater risk of predation, according to Science Daily.

The study's lead author, PhD student Alex McQueen, the superb fairy wren, also known as the blue wren. Every year, male wrens change their color from dull brown to a stunning combination of brilliant azure blue, with contrasting dark-blue and black plumage.