Killer whales, also known as orcas, are incredibly intelligent apex predators. As such, researchers have been observing the ...

Prior to this instance, the “tongue-nibbling” had only been observed a handful of times in captivity. First seen in captive ...

When your cat bites you, it is not just a random attempt from your furry friend; instead, it is packed with meaning.

Researchers using a new drone say they have observed killer whales finding and modifying stalks of kelp to preen each other.

Rubbing against algae to slough off dead skin has been observed in other cetaceans, but never before with what can truly be ...

Learn more about a group of orcas in the Pacific Northwest that have been observed making and using tools to groom each other ...

They observed that whales across all social groups, both sexes and age classes then participated in the grooming behaviors — ...

Other animals including some early humans, non-human primates, sea otters, elephants, and bird species are known to use ...

In a new sign of toolmaking in marine mammals, orcas in the Pacific Northwest were recorded rubbing stalks of kelp against ...

Female chimpanzees that forge strong, grooming-rich friendships with other females dramatically boost their infants’ odds of making it past the perilous first year—no kin required. Three decades of ...