The Caribbean Monk Seal and the the Icthyosaurus are two modern sea creatures that are currently extinct but there have been many more in prehistoric times.
No it is not but it is a very rare sea creature.
The sea mink became extinct because is was hunted to extinction for it's fur.
There are lots of animal that are extinct, but can you be more specific? Like a name?
Extinct Steller's Sea Cow Bhaji River Dolphin Endangered Sea Otter Manatee
Manatee
definitely walruses and sea lions... they are killed for there fat and carcases.
Pollution, strictly plastic bags. Leatherback sea turtles are the only animal that eats jellyfish. If this animal goes extinct, jellyfish will multiply rapidly.
you can't have an extinct animal living. It can be endangered or close to being extinct, but not extinct.
First of all, what animal is it? But anyway whatever animal it is, people are shooting it or killing it. If its a water animal that lives in the ocean, maybe the pollution in the sea or lake is floating and they think it is a play toy and they eat it. Its hard to explain if you don't have what kind of animal it is. Really everthing is going extinct in this world.
Thylacine and Dodo. If you mean "Extincis" to be "extinct."
i think it will be elephant and after they are extinct then it will be leopard
it is most likely to be a manati (seacow) as they are almast extinct and if you look on one it will have scars from rubbish we put in the sea.