Animals that undergo metamorphosis are insects and some types of amphibians. Metamorphosis can be complete, which involves four stages including a pupal stage, or incomplete, wherein the pupal stage is avoided.Continue Reading
Complete metamorphosis occurs in the butterfly. The butterfly begins as an egg that hatches into a caterpillar. The caterpillar does not resemble its parent, but looks like a worm. It has chewing mouthparts that help it devour the great quantities of food it needs to grow.
The caterpillar molts several times as it grows and finally enters a pupal stage. Here, it shuts itself up in a chrysalis or cocoon. Inside the cocoon, drastic changes take place to change the caterpillar into its adult form. Though the pupal stage may last about a fortnight, some pupae overwinter if they pupate in the fall. Then, the adult butterfly emerges from the cocoon and flies off.
Though it's also an insect, a grasshopper undergoes incomplete metamorphosis. The grasshopper nymph hatches out into what looks like a miniature adult and simply molts until it reaches adult size. A frog also begins its life as an egg, but most frogs are tadpoles that live in water. Over time, they grow legs and lungs, and their tails are absorbed into the body. Eventually, they become a terrestrial frog.Learn more about Animal Reproduction
There are many species of animals on Earth that spend the majority of their lives alone, including species of reptiles, amphibians, mammals, fish, insects and arachnids. Solitude is common in the animal world, and it may be only during the mating season that individual members of a species interact with each other.Full Answer >
The vast majority of animals with ocular media, including fish, amphibians, insects and other invertebrates, reptiles, birds and some mammals are capable of seeing ultraviolet light. Goldfish, mantis shrimp, butterflies and eagles are a few examples, while hedgehogs are one of the most UV-sensitive mammals.Full Answer >
Types of animals that live in wetlands include mammals, reptiles, amphibians, birds and marine animals. Most of the animals have specialized adaptations for living in the moist area and depend on the wet environment for their survival.Full Answer >
Ants have many ecological purposes, including caring for other insects, spreading the seeds of some plants, breaking up soil and serving as a source of food. Anteaters and humans are among the animals that eat ants.Full Answer >