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Free range pigs digging food in the dirt

Life

How do captive animals really feel, and can we make them happier?

We are finally figuring out the subtle ways that farm and zoo animals reveal their emotional states, from anxiety to optimism and even joy. The insights are also revealing some surprising ways we can improve their lives

Features

Handout picture supplied by Makoto M. Itoh. A Pelophylax nigromaculatus frog photographed for his study study Female pond frog vocalisation deters sexual coercion by males. mac_itoh@yahoo.co.jp

Life

Female frogs may croak to deter males from mating with them

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Life

One third of all vertebrate species are exploited by humans

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Life

Young squash bugs eat adults’ poo to stock up on healthy bacteria

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Life

Dolphins 'talk' to their young in a higher pitch, just like humans do

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DYRYG4 collection of butterfly specimen. Image shot 2012. Exact date unknown.

Life

Endangered butterflies are being sold for high prices on eBay

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Life

Nematode worms use electricity to jump onto bumblebees and fly away

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Live bug robots

Technology

Scientists want to give robots hands made from living woodlice

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Life

Ancient reptiles' long necks made them vulnerable to decapitation

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Life

Male flies are better at mating after fighting off a robotic rival

Lab-reared insects sometimes struggle to compete for mates with wild males, but an encounter with a robotic replica seems to improve their performance

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Life

Reef sharks are being wiped out by overfishing so rays are taking over

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Life

Extinct lizard was a bizarrely supersized version of modern skinks

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Life

Flies die sooner if they see dead flies

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Life

Dehorning may affect how rhinos interact and establish territory

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