For 50 years, scientists believed that schools of fish would save the most energy by swimming in flat diamond formations.

But the fish -- which Pietsch plans to name the Maluku frogfish -- is different from other anglers in remarkable ways. It lacks a lure, has tiny pelvic fins and -- most remarkably -- has a flat ...

Chile's Rare Salt Flat Fish Faces Threat From Lithium Mining Project ASCOTAN SALT FLAT, Chile (Reuters) - At more than 3,700 meters (12,000 feet) above sea level, the "karachi" swims happily in ...

At more than 3,700 meters above sea level, the “karachi” swims happily in dense salt flat waters, but locals worry a future lithium project will endanger this extreme-environment fish. The ...

Her organization litigated the southern hognose snake’s case and settled a similar case in April involving the Barren's darter — a freshwater fish native to Tennessee — that she said was ...