NATURE

Grey cells in dogs outnumber not just small cats, they also have more brain capacity than lions, hyenas and bears.

Internet becomes haven for climate-denial blogs and websites which downplay or deny existence of man-made global warming despite scientific consensus.

The male cheetahs most probably wanted to see if the female had gone into estrus and was ready to reproduce.

The Mariana snailfish lives can be found in the Mariana Trench – the deepest part of the world's oceans.

Sand and gravel account for the largest volume of any solid material extracted globally, according to research.

Millions of tonnes of ash spewed into atmosphere can severely reduce Earth's temperatures.

Scientists have identified 112 "robust source reefs" that could repopulate and even repair the damage that the Great Barrier Reef has suffered.

Science can be a useful tool when exploring the legends of mythical creatures, according to researchers.

New insights have allowed researchers to create the most accurate depiction of any dinosaur to date.

Clay Tall Stories used a drone to capture footage of an orca feeding on stingray in New Zealand's Ruby Bay. He went back the next day to find dead stingrays littering the beach.

Environmental champion, who was first person to walk to both poles, uses Antarctic trek as green wake-up call.

Researchers do not know why US beaches are being invaded by millions of pink sea blobs, known as pyrosomes.

Earthworms, often referred to as farmer's friends, are vital to a garden ecosystem if humans ever plan to grow food on Mars.

The footage was made available by Sea Shepherd following a five-year legal battle against the Australian government which was trying to block its release.

In the last 500 years, volcanoes have caused an estimated 274,000 deaths, according to scientific research.

Exterminator and beekeeper Jules Verret used a GoPro to capture his removal of a massive hornets' nest on camera. The dismantled nest was more than double his body length.

Mount Agung erupted four times on 25 and 26 November, sending ash 4,000 meters (13,000 feet) into the atmosphere.

Dating puts the microfossils to around the time the Earth's atmosphere started to get increasingly oxygen-rich, kick-starting life.

Geologist Naresh Ghose found the prokaryote, a tiny, single celled organism, in shale underlying volcanic rock in the Gwalior basin of the Bundelkhand region near Jhansi.

The pachyderm was crossing a highway in India's Bengal state when the 40-year-old got out of his car to take pictures of it.

Researchers found that in some cases, they carried hundreds of different species of bacteria, many of which can be harmful to humans.

Warming global temperatures are creating rapid ice-melt in volcanically active regions, such as Iceland.

The forest department officials in the Indian state of Kerala used an excavator to create an escape route for the baby elephant.

Tourists on a sightseeing trip to a Russian island in the Arctic saw more than 200 bears along the hillside.

A group of researchers used a drone to capture the whales as they exfoliated in Canada's Cumberland Sound.

Darwin famously spent time studying the unique wildlife on the islands. His findings led him to develop his groundbreaking theory of evolution.

The animals were documented over a period of just one month during one of the largest ecological surveys ever conducted in Guyana.

Scientists, for a while now, have tried to find an answer to how the Moon developed a crust composed of just one mineral.

Research suggests that the precious metal originated deep inside the Earth, making its way to the surface via volcanic eruptions.