An eight-year-old male giraffe was recently euthanized at the Houston Zoo in Texas after taking what zookeepers call a "significant fall." After several hours, zookeepers were unable to get the giraffe back on his feet, which indicates he would not be able stand and therefore to recover from the injury.
Killer whales have been studied for the first time in their North Atlantic range. Compared to their Pacific Northwest counterparts that feast on Chinook salmon, the Atlantic dwellers prefer preying on minke whales.
Sharks have a reputation for having large appetites, but it appears that reef sharks are remarkably light eaters. After pumping the stomachs of black-tip, white-tip and grey reef sharks, researchers found the animals eat small meals infrequently and opportunistically.
Ancient animals known as glyptodonts, equipped with a massive shell and a club-like tail, are exactly what they look like: Giant Armadillos. While this has been the animals' nickname for a while, researchers were only recently able to prove they were in fact very closely related to modern armadillos.
Alligators are growing much smaller and reproducing less in the Florida Everglades. As an indicator species, this suggests the local ecosystem is in poor health, which puts dozens of other threatened and endangered species at risk, too.
Researchers have for the first time found evidence of tumors on a dinosaur fossil that isn't a member of the duck-billed dinosaur family. They were found on the fossilized vertebra of a long-necked titanosaur.
An Indonesia zoo welcomed a newborn baby Sumatran tiger recently. The one-week old tiger joins three additional cubs born in captivity at the San Diego Zoo Safari Park, California. This is a remarkable conservation feat, as the animals are considered critically endangered.
A small bull shark found struggling in the surf at Palm Beach, Florida, was dragged from the water for selfies. While the animal was later released into deeper waters, it is not clear whether or not it survived its time ashore. It is also one of the three sharks most dangerous to humans.
Eight new whip spiders have been found in Brazil's Amazon rainforest. The arachnids resemble a cross between a spider and a tailless scorpion. This discovery nearly doubles the number known to inhabit Brazil, which now totals 25.
Numerous California songbirds known as pine siskins have been found dead from a communicable disease known as Salmonellosis. As a result, state officials urge people to remove artificial food sources such as birdbaths and feeders.
Pareiasaurs were massive herbivores that ruled the Earth long before dinosaurs. Despite their stumpy limbs, researchers have found China natives were actually world travelers, able to mingle with relatives in Russia and South Africa.
The Toronto Zoo's newest addition is a baby Indian rhino, a species currently listed as vulnerable on the International Union for Conservation of Nature (IUCN) Red List of Threatened Species.
Animal shelter staff often misidentify dogs as pit bulls, solely based on appearance. As a result, they are less likely to be adopted.
In recent years, Florida wildlife officials have been concerned the growing population of rhesus macaques living in Silver Springs State Park. They feared the nonnative animals were taking a toll on the region's ecosystem and had the potential to transmit diseases. But a new study by San Diego State University biologists proves otherwise.
After Thailand's Huai Kha Khaeng Wildlife Sanctuary beefed up patrols for poachers starting in 2005, tiger populations grew substantially. This is an outstanding conservation success, say researchers, but they also warn that continued patrolling is needed to ensure that populations of prey grow to meet the food demands of more tigers.