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A 2020 study reported that by 2050 global warming could be spreading in the deep ocean seven times faster than it is now, even if emissions of greenhouse gases are cut. Warming in mesopelagic and deeper layers could have major consequences for the deep ocean food web, since ocean species will need to move to stay at survival temperatures. [66] [67]
As sound travels faster and over a larger distance in water than in air, aquatic animals can use sound signals for long-distance communication while terrestrial animals cannot. [4] For example, a blue whale can communicate with another blue whale using sound over thousands of miles across the sea.
There are multiple species of gulper sharks, which has contributed to misidentification in the past. For example, populations of the gulper shark in the Southeast Atlantic Ocean may represent a separate species. Therefore, taxonomic confusion may influence current geographical range. The gulper sharks like deep, murky waters.
The tiger shark is an apex predator [35] and has a reputation for eating almost anything. [7] These predators swim close inland to eat at night, and during the day swim out into deeper waters. [36] Young tiger sharks are found to feed largely on small fish, as well as various small jellyfish, and mollusks including cephalopods.
Marks made by cookiecutter sharks have been found on a wide variety of marine mammals and fishes, and on submarines, undersea cables, and human bodies. It also consumes whole smaller prey, such as squid. Cookiecutter sharks have adaptations for hovering in the water column, and likely rely on stealth and subterfuge to capture more active prey ...
In the ocean food chain, large sharks generally only have to worry about keeping orcas at bay — but a new study suggests the apex predators may have to watch out for their own.. Researchers have ...
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Few animals inspire the level of fear that sharks do, thanks to “Jaws” and other sensational tales of deadly encounters, and a steady stream of U.S. shark sightings has been the stuff of ...