Gump

Some extinct species were revived in a fashion using archived genetic information and placeholder DNA. The descendants of these experiments are known as gumps and comprise the majority of large wild animals.

Their instincts are not as keen as their ancestors', and their stock is often pulled from small samples, so they are a bit weaker. The first gumps were taught by humans how to behave in the wild again, and now all such creatures share a slight affinity for humans. Gumps are slowly becoming healthier and wilder, but the stamp of humanity is indelible on the current generations.