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Fishing nets and lines can cause injuries to manatees that can lead to serious infections. Studies have shown that around 14% of manatees since 1978 have been found with debris in their GI tract which mainly consisted of fishing lines. Some manatees have also been shown to have missing or scared fins due to their entanglement in these fishing ...
Manatees are frequently solitary creatures, but they do aggregate at warm-water habitats during the winter and during the formation of breeding herds. [11] In spite of their docile demeanor, due to their large size the West Indian manatee has nearly no natural predators in its native environment.
While humans are allowed to swim with manatees in one area of Florida, [69] there have been numerous charges of people harassing and disturbing the manatees. [70] According to the United States Fish and Wildlife Service, approximately 99 manatee deaths each year are related to human activities. [71]
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Violating federal protection laws for manatees can incur fines up to $100,000 or up to a year in prison, according to the Florida Fish and Wildlife Conservation Commission.
Many manatees migrate there during the rainy season. When the water dries up the manatees are unable to get to other bodies of water. [19] Manatees do not have many true predators. Apart from humans, they are threatened by sharks, crocodiles, and alligators but this is rare because of a difference in habitat.
In the wake of thousands of Florida manatee deaths in recent years, federal wildlife officials Wednesday announced they will launch a new scientific review to determine whether the animal should ...
In other species, males that are smaller than females have higher fitness. As such, many sex-specific morphological adaptations (for example, in Dytiscidae diving beetles, females have setose dorsal furrows that males do not and males have suction cups on their forelegs that females do not [18]) are sexual dimorphisms caused by sexual coercion.