(1) The prime suspect is a predator new to the otter: the orca .(2) Five river dolphin species and 34 oceanic species have been identified, including the orca and melon-headed and pilot whales.(3) The release of 195 decibels into this key waterway used by orcas , porpoises, seals, and other marine mammals was followed by an increase in strandings.(4) The orcas - like those made famous by the film Free Willy - usually move in large family pods around the North Atlantic, visiting America, Greenland, Iceland, Norway and Scotland on their long trek.(5) The area is home to orcas , dolphins, and a wealth of other marine mammals and birds.(6) Then potential menace turned to pure joy as two more orcas joined the first and together they porpoised toward the setting sun.(7) We jump aboard and head out full-throttle until we see a pod of orcas running down a Pacific white-sided dolphin.(8) Unlike other mammals, newborn dolphins and orcas stay active 24/7 during first months of development(9) Salmon is critical to the diets of grizzly bears and orcas , the researcher stated.(10) Adult orcas have been seen encouraging their young, pushing them onto a ‘practice’ beach where no seals are present.(11) If you look at dolphins, orcas , and blue whales, all fully aquatic animals, you would have a hard time imagining them walking on land.(12) Sharks have not displayed the intelligence that dolphins, orcas or even whales have.(13) The orcas prey on the indigenous Californian sea lions, which are permanent residents off the smaller islands such as Los Islotes, off the remotest corner of Espiritu Santo.(14) That forced orcas , or killer whales, which normally feed on seals and sea lions, to approach the coast and eat the sea otters.(15) But Balcomb said he is fighting, nonetheless, to prove that sonar is dangerous to orcas too.(16) We take cups of coffee onto the deck to view humpback whales and pods of orcas .
