Answer:
Tropical areas are warm and wet causing for animals to want to hide essentially. Also there is a lot of cover for animals to hide in. Usually in tropical areas there are a lot of predators also, another reason for animals to hide.
B) legally and appropriately transferred care
Earth is not at the center of the moon's orbit. Objects in space do not orbit in circles. The orbit in ellipses, or, ovals. Geometrically, an ellipse is formed by two focus points. Much like the sun is at one focus point of the Earth's orbit, the Earth is at one focus point of the moon's orbit.
(I do not own the image.)
1.0 x 10^-6..............way to hard to explain by typing