Search results
Results from the WOW.Com Content Network
Orcas (or killer whales) are large, powerful aquatic apex predators. There have been incidents where orcas were perceived to attack humans in the wild, but such attacks are less common than those by captive orcas. [ 1 ]
The fate of two killer whales is uncertain following the closure of a marine zoo on Sunday. ... their closest relationship is with humans. They are the ones who have provided them with food, care ...
A hunt begins with a chase followed by a violent attack on the exhausted prey. Large whales often show signs of orca attack via tooth rake marks. [84] Pods of female sperm whales sometimes protect themselves by forming a protective circle around their calves with their flukes facing outwards, using them to repel the attackers. [90]
The whales make groans, pops and belches typically at frequencies around 500 Hz. The purpose of the sounds is not known but may be a form of communication between whales within the same group. Northern right whales responded to sounds similar to police sirens—sounds of much higher frequency than their own. On hearing the sounds, they moved ...
Fewer than 400 individual North Atlantic right whales remain in the wild, and their numbers continue to decline. Oceana, a conservation group based in D.C., has reported numerous collisions ...
Researchers found an increase in common dolphin sightings in the English Channel and Hebrides, and a decline in white-beaked dolphins in the Hebrides.
Fin whales, humpback whales and sperm whales have been found to have spindle neurons, whose function is not well understood, which is a type of brain cell known to exist only in certain other species of high intelligence: humans, other great apes, bottlenose dolphins and elephants.
Despite beluga whales not being threatened overall, sub-populations are being listed as critically endangered and are facing increased mortality from human actions. For example, even though commercial hunting is now banned due to the Marine Mammal Protection Act, beluga whales are still being hunted to preserve the livelihood of native Alaskan ...