Earth was once ruled by giant reptiles. Tyrannosaurus rex, the king of tyrant lizards, crushed bones. Spinosaurus hunted in ...

The Mesozoic Era extinctions formed the world as we know it today. Read about what caused them and which animals survived.

Ruby Reynolds and her father were on the beach when they discovered Ichthyotitan severnensis - the largest-ever marine ...

It is referred to as the Permian-Triassic ... climate and ocean chemistry. Sea levels rose and the oceans became more acidic, leading to mass extinctions of creatures such as conodonts (marine ...

Southwest Texas is the location of some pretty amazing parks, and I had the opportunity to visit two of them: Carlsbad Caverns National Park in New Mexico and Guadalupe Mountains National Park in ...

Scientists have predicted that Earth will undergo a mass extinction in 250 million years, with extreme heat and rising CO2 ...

For millions of years, many extinct creatures dominated the earth. Similarly, sea scorpions roamed the ... period and survived until the great Permian Extinction about 252 million years ago.

These marks were made by waves in the ancient Permian Sea. The deepest layers of salt match the deepest parts of the old seabed. In some places, you can even find fossils from sea creatures that used ...