Wolf Friends

Wolves have best friends.
Who are they? Common ravens.
They have such a humorous and intimate relationship that they are known in the world of ethology as "wolf-birds."

When a raven spots an animal carcass from the air,
it calls out loudly to summon the wolves.
Because their beaks cannot tear through the thick hide of large animals,
they rely on the wolves' powerful teeth for help.
Once the wolves tear open the hide and begin to eat, the ravens join in,
receiving a "share" of up to one-third of the prey (about 900g per day).
While this behavior is defined in ecology as "interspecific kleptoparasitism,"
it could be called a collaborative effort where they complement each other's traits.

Furthermore, their relationship goes beyond being mere dining partners.
Ravens will initiate "play" with young wolves.
They might hold a tree branch in their beaks and play tug-of-war with wolf pups,
or approach from behind to pull their tails in innocent mischief. Seeing wolves, which are apex predators,
gently indulging the ravens' behavior is truly heartwarming.

In the harsh natural world, they help each other by borrowing the other's abilities,
and sometimes even play across species lines. I believe this exquisite balance
is a wonderful form of "friendship" created through the process of evolution.

[Source/Primary Information Sources]

• Symbiosis and kleptoparasitism in the foraging behavior of common ravens and wolves

  • Stahler, D., Heinrich, B., & Smith, D. (2002). "Common ravens, Corvus corax, preferentially associate with grey wolves, Canis lupus, as a foraging strategy in winter". Animal Behaviour, 64(2), 283-290.

• Intelligence of common ravens and interspecies (wolf) play behavior

  • Heinrich, B. (1999). Mind of the Raven: Investigations and Adventures with Wolf-Birds. HarperCollins.