In996, NORAD spotted an object entering Earth’s atmosphere. Minutes later, it crashed near Varginha, Brazil. The military ...

Long before whales dominated the oceans, Earth’s seas were home to a fish so massive it continues to challenge our ...

The invasive Asian swamp eel is threatening the Florida Everglades by disrupting the food web. This predatory fish has caused ...

Scientists recently discovered a new species of green anaconda in the Amazon rainforest. A new Nat Geo series shows the ...

These "total monsters of fishes" are extinct today, though new clues about their lives come from CT scans and their closest ...

Far below the ocean’s surface, where sunlight disappears and pressure reaches crushing levels, some of the planet’s strangest ...

The spread of invasive species is considered a serious threat to delicate aquatic ecosystems in natural water bodies, ...

The Amazon sailfin catfish is characterised by a body covered with bony plates and a thick, armoured structure. Native to ...

Prehistoric sea cows, a mouse-sized opossum, a smiling deep-sea fish and live-birthing toads highlight a year of discoveries ...

A team of astronomers have used the Hubble space telescope to capture with direct imaging asteroids smashing into each other ...

The afternoon of 7 August 1996 isn’t a time that sticks in many people’s minds. But if things had worked out differently, it might have been etched into our collective memory. At 1.15pm, US President ...

Americans are becoming more open to the idea that aliens have visited Earth, according to a series of polls that show belief in alien visitation has been steadily on the rise since 2012. Moreover, ...