De-extinction company Colossal mixed mammoth and mouse mutations in a single strain to create a shaggy-haired rodent.

After an intense study of the mammoth's genetic code, scientists have engineered 'woolly' mice with altered fur thickness, ...

Colossal Biosciences has focused on identifying key traits of extinct animals by studying ancient DNA, with a goal to genetically "engineer them into living animals," said CEO Ben Lamm.