Toothed whale swallow fishing hooks. Gillnetting and Seine netting are significant causes of mortality in cetaceans and other marine mammals. Porpoises are commonly entangled in fishing nets. Whales are also affected by marine pollution. High levels of organic chemicals accumulate in these animals since they are high in the food chain. They have large reserves of blubber, more so for toothed whales, as they are higher up the food chain than baleen whales. Lactating mothers can pass the toxins on to their young. These pollutants can cause gastrointestinal cancers and greater vulnerability to infectious diseases. They can also be poisoned by swallowing
Toothed leaf chameleon Toothed leaf chameleon The toothed leaf chameleon, Brookesia dentata, is a species of chameleons endemic to northwestern Madagascar. It was first described by Mocquard in 1900: 345, and has been described numerous times since then, most recently by Townsend "et al." in 2009. It is affected by the collection of charcoal, forest fires, and the grazing of cattle. The toothed leaf chameleon is endemic to northwestern Madagascar, and its type locality is Sberbieville. It has been confirmed to be found at Andasibe, Mandraka, and Angavo-Anjozorobe. At the highest, the species can be found at above sea level. The International Union