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Due to fragmentary remains, there have been many contradictory size estimates for megalodon, as they can only be drawn from fossil teeth and vertebrae. [ 37 ] : 87 [ 38 ] The great white shark has been the basis of reconstruction and size estimation, as it is regarded as the best analogue to megalodon.
Prehistoric Predators is a 2007 National Geographic Channel program based on different predators that lived in the Cenozoic era, including Smilodon and C. megalodon.The series investigated how such beasts hunted and fought other creatures, and what drove them to extinction.
Megalodon: The Monster Shark Lives is a 2013 film that aired on the Discovery Channel about the potential survival of the prehistoric shark. Purported to be a documentary, the story revolves around numerous videos, "photographs", and firsthand encounters with a megalodon and an ensuing investigation that points to the involvement of the prehistoric species, despite the long-held belief of its ...
Noise pollution is especially damaging for marine mammals that rely on echolocation, such as whales and dolphins. These animals use echolocation to communicate, navigate, feed, and find mates, but excess sound interferes with their ability to use echolocation and, therefore, perform these vital tasks. [43]
The relics recovered at San Pedro High School included parts of whales, teeth from megalodon sharks, saber-toothed salmon, and other fish that date back to nine million years ago.
Dubbed "Hell's Aquarium", this sea is determined to be the most dangerous due to the sheer number of different predators present, including 17-metre (56 ft) giant mosasaurs . [ 8 ] [ 9 ] [ 10 ] In addition to providing information on the animals encountered, Marven's presence also serves to provide a sense of scale and dread throughout the series.
For example, painted goby males did not take part in visual courtship behaviour when in a noisy environment. [15] Female painted gobies in this experiment were also less likely to spawn in a noisy environment. Noise pollution can also affect foraging behaviour in marine animals, which results in less effective strategies.
Wild animals can experience injury from a variety of causes such as predation; intraspecific competition; accidents, which can cause fractures, crushing injuries, eye injuries and wing tears; self-amputation; molting, a common source of injury for arthropods; extreme weather conditions, such as storms, extreme heat or cold weather; and natural disasters.