Tech Insider
Two otters cling to each other in the ocean.
Otter populations in the Commander Islands have been decreasing in recent years.
Tech Insider
A collage with a photo of a killer whale and a great white shark.
Killer whales hunt great white sharks in waters across the world.
Tech Insider
An orca swimming.
Nine killer whales have died after being caught in fishery equipment off the Alaska coast this year.
Tech Insider
two orcas pursue a dolphin which is about the size of their fins in deep blue water
A screengrab from the video shows a juvenile orca following an adult as it hunts a dolphin.