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While marine pollution can be obvious, as with the marine debris shown above, it is often the pollutants that cannot be seen that cause most harm.. Marine pollution occurs when substances used or spread by humans, such as industrial, agricultural and residential waste, particles, noise, excess carbon dioxide or invasive organisms enter the ocean and cause harmful effects there.
There is an argument that whales should not be killed because of their high intelligence. [29] Pro-whalers claim that pigs also possess high intelligence, and are routinely butchered and eaten, and that intelligence should not be the determining factor of whether an animal is acceptable to eat or not.
The Soviets reasoned that the best way to conduct a subsistence hunt was to employ a single modern whaling ship, the Zevezdny, to catch whales on behalf of the Siberian native people. Instead of the average 10 to 30 whales historically claimed in one year, after 1955 the quota rose to nearly 200 gray whales and international observers were not ...
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 ]
New research shows how marine mammals ignore the rules of biology to thrive in the world's coldest waters
The gray whale (Eschrichtius robustus), [1] also known as the grey whale, [5] is a baleen whale that migrates between feeding and breeding grounds yearly. It reaches a length of 14.9 meters (49 ft), a weight of up to 41 tonnes (90,000 lb) and lives between 55 and 70 years, although one female was estimated to be 75–80 years of age.
Two endangered whales have been spotted entangled in fishing gear off Massachusetts, and one is likely to die from its injuries, the federal government said. An aerial survey found the whales ...
Killer whales have reportedly attacked more than 500 boats in European waters recently. Are they exacting revenge for humanity's treatment of orcas? Why are killer whales going 'Moby-Dick' on ...