"Gruesome" incident in remote Chagos Islands in the Indian Ocean captured by researcher.
Apples get brown because flesh reacts with oxygen due of a certain type of enzyme. Scientists simply deleted the gene that codes for this enzyme.
Scientists from the European Union accidentally caught the frilled shark - Chlamydoselachus anguineus – often referred to as a "living fossil".
Sudan, the world's last male northern white rhino, has been captured in footage that shows him "waiting to go extinct" in his reserve.
Weighing around 50kg, Siamogale melilutra was much larger than any other living otter and likely would have been a formidable hunter as a result of its powerful bite and size.
The discovery was made when University of Portsmouth's Grant Smith was looking at Cretaceous-era rocks collected on the coast for a dissertation project.
The disturbing image titled Hell is Here, was taken by Biplab Hazra in eastern India and went on to win the Sanctuary Wildlife Photography Awards 2017.
Sheep have brains that are similar in size and complexity to those of some monkeys, making them useful models to understand more about human brain disorders.
"It is up to every one of us to make sure the next generation inherits an ocean that has more fish than plastic."
Officers at London's marine policing unit captured this sighting of a dolphin making its way down the Thames.
Animal evolution is being influenced by the urban environment in ways which could have potentially harmful consequences for humans.
Award-winning photographer and zoologist Axel Gomille pays homage to the subcontinent's overwhelmingly spectacular natural heritage in his book Wild India.
The 35-year-old royal's speech followed recent efforts by the UK government to end the trade in ivory in the country.
Poachers shot dead the mother and the calf who were roaming in the Pilanesberg Park. Park rangers were unable to save the unborn rhino.
The findings broaden our understanding of animal psychology and how different species can communicate.
An isolated population of orangutans living on the Indonesian island of Sumatra has been designated as a new species.
Some volcanoes could provide the same amount of power as several million solar panels, or 500 wind turbines.
A local man filmed footage of a British snake catcher wrestling with a Burmese python that was believed to have eaten a cat.
New research shines a light on the evolution of turn-taking – a behaviour that forms the basis of a range of social interactions, including communication and language.
Researchers estimate that the fearsome predator had a wingspan of up to 36 feet and may have stood as tall as a giraffe.