South Chinese Tigers

The tigers are losing their habitat to civilizations, which means they are losing their habitat, ergo, their source of food. As their habitat continues to get destroyed, they've begun to migrate until they have reach Ethiopia. This is where some of the tigers started to grow larger fangs because the animals in Ethiopia were much tougher to kill. This made them better hunters than other tigers. The tigers that died were the ones that did not grow larger fangs because they lost all of the food to the tigers that did grow larger, thicker fangs. Eventually the weaker tigers died, leaving the successful tigers to have more offspring. After many generations, all the tigers had larger fangs and he trait for normal fangs disappeared.

A population is a group of individuals of the same species occupying a certain area. The South China tiger population was estimated to number 4,000 individuals in the early 1950s. Approximately 3,000 tigers were killed over 30 years.

Variation is the difference in the phenotypes. No variation occurs in the tigers. They all grow larger fangs around the same size.

Overproduction is when an organism has more offspring than the habitat can support. This is important because it ensures that only the ones with the best traits will survive to pass on their traits to their offspring. The tigers that didn't grow larger fangs weren't able to get food, but the tigers that did were able to. Only the most fit are able to eat with the limited food source.

Environmental changes can be anything that involves changing an organism's habitat. This could be droughts or floods. In the tiger's case, it was civilizations expanding into their habitat taking away their homes and source of food.

Selection is the process by which the environment makes the organisms better adapted to their environment tends to survive and produce more offspring. The environment selected the larger fangs because they were beneficial to the tiger's survival.

Heredity is the passing of parent's genes onto their offspring. The unsuccessful ones don't pass on their traits because they end up dying. This is why tigers are the way they are now. The successful traits that helped their parents survive help the offspring survive. This is the reason some traits disappear or change into different ones. In the tiger's case,