Rare videos show remoras, or "sucker fish," whale-surfing in Australia, the fish hitchhike on humpback whales for a ride and for food.

Scientists have captured rare footage of remoras, also known as sucker fish, hitching rides on humpback whales off the coast of Australia. Remoras use an adhesive plate on their heads to cling to ...

Sucker fish are vital to the Great Lakes ecosystem, forming a foundation on which other organisms depend, from macroinvertebrates to bald eagles. Chicago Tonight is available to stream on pbs.org and ...