The winning images will be on display in London this week and feature remarkable shots of insects, birds, reptiles, and more.
The combined comb jellyfish synced up their movements, melded their nervous systems, and even joined their digestive tracts.
The big cat outbreak is the latest worrying instance of widespread bird flu transmission to mammals.
Researchers have found that bottlenose dolphins make a distinct open mouth gesture when playing with other dolphins, similar to how humans smile and laugh with each other.
Arthur "Jack" Schubarth used a cloned Marco Polo argali sheep, the largest species in the world, to try to create an even bigger hybrid.
Philosopher Susana Monsó's book Playing Possum, newly translated into English next month, makes the strong case that many animals big and small understand the concept of death.
All across the animal kingdom, there's something to laugh about.
Sea robins are weird animals who use leg-like appendages to walk on the seafloor. Now, scientists know why they evolved those limbs.
The mysterious group of orcas, living off the coast of Chile, employs particularly grisly hunting methods.
The cephalopods team up with a variety of fish for hunting, and that results in some complex relationship dynamics that can include violence.
Scientists have discovered a never-before-seen invasive species of land flatworm living in North Carolina, Florida, and possibly other parts of the U.S.
The unprecedented five hour operation took a team of 10 veterinarians to perform.
The newly identified calf, named Iris, is now part of the world's most fragile population of rhinos living today.
The newly found wasp appears to be common in the eastern United States, and inflicts Lynchian body horror onto its hosts.
It's the first time scientists have observed prey behavior inside a predator's digestive tract.
The late kingpin's animals have roamed free since the early 1990s, but their tenure could soon come to an end.
A new study shows that, while dogs are prolific fetchers, plenty of cats will regularly play fetch, too.
Power wires normally pose no threat to birds, but that can change if they start trying to find snacks in the wrong places.
New research suggests dogs can not only label objects in their heads, but can retain those labels for extended periods of time.
The mammals were brought onto an island to cull venomous snakes, but only had eyes for the island's endangered rabbits.
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