The entire lifespan of a house fly is 14 days, and they only buzz in the key of F. Ostriches are even faster than horses.
In areas with vegetation, there are approximately 50,000 spiders per acre. To jump, kangaroos use their tails for balance. There are 32 muscles in the ear of a cat. Giraffes lack vocal cords. Seahorses are the slowest fish in the sea. Tigers have striped skin as well as striped fur, and no two tigers' stripes are the same. Female elephants are one of only three mammals to experience menopause, along with humpback whales and humans.