Richard Packwood/ Getty Images
The study shows that bird mothers can adjust egg size depending on their social conditions. This counters the idea that, with more help, mothers lay smaller eggs.
Survival curves for eight pure breeds. Border collie (dark blue), border terrier (light blue), bulldog (green), French bulldog (red), labrador retriever (orange), mastiff (purple), miniature dachshund (pink) and pug (brown). All purebreds vary significantly from crossbreds (light purple).
New research shows that certain breeds tend to live longer than others, and this could help potential owners decide which companion is best for them.
Wandering albatross nesting on Marion Island.
Climate change could reduce suitable nesting sites for the wandering albatross on Marion Island.
Anchovies cause a stir as they mate – getting the oceans moving.
Pit Bull terrier.
FADEL SENNA/AFP via Getty Images
Pit bulls were imported to South Africa, mainly from the 1970s, where they were further bred - some as guard dogs, some as pets, some for illegal dog fighting rings.
Somehow, female birds manage to hold their families together despite predators, harsh conditions and sometimes, a less-than-attentive partner.
Female song is common among fairywrens, like this red-backed fairywren.
For decades, scientists believed that only male birds sang. Then women entered the field and showed what their predecessors had missed.
These results finally provide scientific evidence to what was considered common knowledge about our beloved pets.
Many breeders say they’re stewards of conservation, but no captive tiger has ever been released into the wild.
AP Photo/Kevork Djansezian
There are more captive tigers in the US than there are in the wild around the world – and they can be bought for less than some breeds of dog puppies.
Not all Thoroughbreds mate in the natural way.
Today’s the official birthday of all race horses in Australia which means the breeding season is just a month away. It’s about to get very busy for stallions and mares on the stud farms.
Knew you were coming: a koala cub on the back of the mother.
We used to think a marsupial mum didn’t know when she was pregnant, but new research shows that’s wrong. And that could help in conservation of endangered species.
Fields of sunflowers are now a common sight all over the world – but this has only been the case relatively recently.
Rose’s mountain toadlets mate in small puddles. Here is a male with a string of eggs in the water.
The Rose’s mountain toadlet adapts its breeding habits according to the weather.
Well hello, Dolly.
Photo courtesy of The Roslin Institute, The University of Edinburgh.
In 1997, scientists announced they’d created a healthy sheep cloned from another ewe’s mammary gland cell. Two decades on, the technique is being refined and applied to new challenges.
Scientists think the European eel spawns thousands of miles away in the Sargasso Sea – but no one has ever seen an eel there.
A typical English bulldog.
Do we need to outbreed bulldogs with poor health with a different breed? Our research suggests this may not be necessary.
Accusations of animal cruelty at this year’s Crufts have reminded us of the mostly hidden dark side of pedigree breeding.
Susan Schmitz / shutterstock
We’ve bred them into all shapes and sizes, but dogs haven’t been around for long enough to have evolved beyond Canis familiaris.
I’ll have a clean cage with a side of fertility issues.
Mouse image via www.shutterstock.com
Mice possess a notable talent: they are excellent at making more mice. Their ability to reproduce at a breakneck pace is one reason they are often used as experimental research subjects. Thus, when Dr…
How much of Black Caviar’s racing prowess will be passed to her foal?
The win of Japanese stayer Admire Rakti in the Caulfield Cup, followed by Irish bred colt Adelaide’s win in the Cox Plate last Saturday, has brought into question the stamina (staying) credentials of Australian…