Leaving aside invertebrates, which are often microscopic, the smallest land vertebrate is Paedophryne amauensis. This tiny frog was discovered in the jungles of New Guinea, and adults are only 0.27 inch long.Continue Reading
This type of frog is terrestrial, prowling the leaf litter of the forest floor and eating insects even smaller than itself. Due to the fact that this frog was just discovered in 2009 and first published in 2012, not much is known about this creature yet.
At about 1.14 inches, the smallest mammal on Earth is the bumblebee bat. It is the smallest mammal in the world by length, although the 0.06-ounce Etruscan shrew is slightly lighter.Learn more about Biology
Examples of external fertilization can be seen in frogs, some marine invertebrates and many types of fish. External fertilization happens when sperm fertilize eggs outside of the body of the female animal. Often, in order for a viable number of eggs to be fertilized, the female needs to lay a great number of them. For example, the Chinook salmon can deposit up to 14,000 eggs in a nest.Full Answer >
Stoneflies do most of their eating while they are in the larval stage, during which time they capture and eat other small insects and invertebrates. The adult stage of a stonefly's life cycle is primarily concentrated on breeding, and many species die shortly after breeding. While some adult stoneflies do not eat at all, others consume pollen or algae.Full Answer >
A coral reef's food chain starts with algae that produce food from water, carbon dioxide and sunlight, which are eaten by microscopic organisms, invertebrates, fish and turtles, which are eaten in turn by predators. All ecosystems, including coral reef ecosystems, have producers, consumers and decomposers.Full Answer >
The amniotic egg allows reptiles, birds and mammals to lay eggs on land without drying out. The fluid-filled cavity containing the embryo is separated from the external environment by an amniotic sac that is impermeable to water. It is protected by an external hard shell.Full Answer >