Sharks are very endangered and put on the top ten list of endangered species. Sharks are threatened by shark fishing, commercial fishing, commercial fishing by-catch, pirate fishing, bait drum lines, shark nets, chemical pollution, garbage which equals 14 billion pounds a year, and habitat loss which is only a few examples as to what we do to our ecosystems. We invade their territory and with only an average of 19 shark attacks and half being fatal we kill over 100 million. This as supports the acidification of our oceans. If sharks go extinct, humans may be next.