Zebra finches may have the potential to become brood parasites. Keith Gerstung

Bad parenting could give zebra finches the evolutionary edge

Species must reproduce to survive, and animals have found unique ways of achieving this. For some, including us, it seems as though producing a few offspring that require extended care is the best strategy…
Spot the difference. You might succeed but bird hosts fail. piper

Egg colours make cuckoos masters of disguise

Cuckoos are notorious cheats. Instead of building a nest, incubating their eggs and raising their chicks, they lay their eggs in the nests of other birds and leave the task of raising their offspring to…
Little bronze-cuckoo: my eggs are the best. Greg Schechter

Cuckoos beat competition by laying ‘cryptic’ eggs

Cuckoos aren’t the kind of parents you’d want. They never raise their young ones, leaving that job to other birds. They achieve this by laying their eggs in other expectant birds’ nests, who treat them…
A juvenile black-eared cuckoo being fed by an adult speckled warbler. David Cook

How birds cooperate to defeat cuckoos

Why help another when you can help yourself? Cooperation is very common in nearly all life, from genes and cells to humans and other animals. However understanding why can be difficult: being selfish seems…
Cane Toads have wreaked havoc in Australia. Could we predict the next invasive species? Flickr/Brian Gratwicke

Darwin’s invasive species theory challenged

New research on invasive species has cast doubt on the prevailing theory developed by Charles Darwin, giving us a new way to predict and model species when they are introduced. Invasive animals such as…
Captive bred Tasmanian devils have recently been reintroduced to Tasmania. But do we want daring or docile devils in the wild? AAP

Personality matters: when saving animals, fortune favours the bold

Reintroduction programs are key initiatives for re-establishing or re-stocking animal populations, and while some are successful, many, unfortunately, are not. Endangered and critically endangered animals…
Bird feed now. The whole bird later. vermininc

Introducing species to change ecosystems is a balancing act

Species hold ecosystems in a delicate balance. From time to time humans introduce non-native species to an ecosystem, because they may be needed for domestic work, as pets, for carrying loads or even for…
Yeah, they messed with my genes. attawayjl

Silk Road trading helped produce the modern horse

The Silk Road snaked across continents for more than a thousand years, shaping civilisations in East and West. Famously trodden by Alexander the Great and Genghis Khan, the trade route brought riches to…
Winter is coming. Clara do Amaral

Alaskan frogsicles take winter in their stride

For life to persist, it must tolerate its environment. The depth of an arctic winter is formidable, and is most notably overcome by hibernation. But some reptiles and amphibians survive by allowing their…
Baboons can be shy, just like you. Arno Meintjes Wildlife

Hungry baboons are a lesson in human personality

Our individual, varied personalities are among the traits often cited as those that distinguish us from the rest of the animal kingdom. However, as we, like the rest of life on Earth, are products of natural…
They aren’t just pretty birdies - superb fairy-wrens teach each other to identify and fend off parasitic species such as cuckoos. William Feeney

Superb fairy‑wrens recognise an adult cuckoo … with some help

Can superb fairy-wrens learn to respond to brood-parasitic cuckoos by simply watching other fairy-wrens react to a cuckoo? That’s the question posed in a new Biology Letters study by myself and Naomi Langmore…

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