These are the animals with the longest migrations. In the Yukon, Porcupine caribou travel 3,000 miles. This is the longest migration by land of any mammal on Earth. Monarch butterflies fly about ...

Dancing turtles have proved for the first time that some animals use Earth's magnetic field to create a personal map of their favourite spots, scientists said Wednesday. Some animals that migrate ...

PARIS — Dancing turtles have proved for the first time that some animals use Earth's magnetic field to create a personal map of their favorite spots, scientists said on Wednesday. Some animals that ...