Why animals should no work for humans?

What sort of animals live in mount bosavi? Are blood worms harmful to humans or animals? If 7kj of energy are transferred to the lion estimate the energy available in the grass for the following food chain grassimpalaleoparklion? What animal eats the ash tree? Why do seagulls gather on neighborhood football fields? Why Life Cycle will repeat itself? How long does it take to get to sleep? What could be causing my cat to have a bald spot above its eye? Do cats recognize their siblings after years of separation? Why is my cat pooping on the floor at night? How are Marsh grasses adapted to survive in saltwater? Is Sirius closer to the Sun or Pluto? How can a thunder shirt help calm anxious cats during storms or loud noises? What structure is found in both plants and animals cells? How are cells organized in a plant and animal cell? Do hamsters explode on planes, and if so, what precautions should be taken to prevent this from happening? What fish are seahorses related to? How big is Stevenage? What are the possible causes of sudden excessive drooling in cats? What happens if you pop a tick on a dog?