Not all penguin species are endangered. Human actions and environmental changes have endangered many penguin species. For example, humans have hunted penguins for oil and polluted their habitats.
Humans are the main reason that puma is endangered species. As a species, the puma is not an endangered species. Only the Florida race is endangered.
The main reason they are endangered is because we take their meal, which is fish. Now, biological scientists plan to make a fishing reserve for penguins only.
Because global warming is the main reason that penguins are endangered, the best thing you can do to help this endangered species is to fight global warming. Another solution is not to buy penguin products, because believe it or not, this beautiful creature is still hunted in modern times.
The gray wolf is not an endangered species. Listed as least concern by the IUCN.
Habitat loss threatens the jaguar, but this species is not an endangered species, rather listed as near threatened.
Mostly because Japanese people have killed them for their meat and blubber.
Some species that are not endangered are fish, sharks, and most insects. Also, the main species of this planet, humans.
hunting
The main one I know of (and am most familiar with) is CITES - the Convention on the International Trade in Endangered Species.
Poachers are hunting them when they aren't suppose to and the animals become endangered
Animals become endangered due to habitat loss, climate change, pollution, poaching, and invasive species. These factors disrupt their natural habitats and food sources, making it difficult for them to survive in the wild. Conservation efforts are crucial to protect endangered species from extinction.
According to the Red List of endangered wildlife, over a thousand bird species around the world are threatened with extinction. The main reason for birds becoming extinct is believed to be loss of habitat.