A nine-year study tracked more than 800 of the massive and largely mysterious whale sharks. For the first time, researchers have tracked the sharks' far-flung migration and where they may go to give birth.
Beta agonists, a class of drugs widely fed to cattle and hogs to make them put on weight faster, are coming under increasing scrutiny. Reports suggest animals fed these drugs can seem reluctant to move — lethargic, unable to walk properly — and may die more often, too.
Just a fragment of genes in bat guano was enough for researchers trying to find out how a deadly new virus spreads. It's the first time the Middle East respiratory syndrome virus has been found in an animal, and offers strong evidence that bats carry the virus.
The windswept island about 6 miles off the coast was a haven for a hugely diverse bird population until fishermen decimated the birds' ranks. Puffins have been successfully reintroduced to Eastern Egg Rock, but warming ocean waters may be threatening their ability to survive.
In New Zealand last week, Rory the cat was brought to the vet after eating rat poison. He needed a blood transfusion fast. There was no time to get a donor match, so the vet took a risk and used blood from a dog donor instead. The inter-species gamble paid off.
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