The colias butterfly cannot fly when its body temperature is below 28oC (83oF). In such case ...

Having eaten these nutritious but poisonous seeds, macaws fly towards a rocky place. There t ...

A fish expends a large amount of energy while swimming. This is not because it swims fast fo ...

Never before has any other belief or idea so taken away peoples’ powers of reason, ref ...

The beach they arrive at to reproduce has to be the one where they were born. Sometimes sea ...

A person who has never seen the huge nests built by blind termites would probably think that ...

Nothing happens because the head structure of woodpeckers is ideally created for such a task ...

Amazon water lilies that grow in the sticky mud covering the bottom of the Amazon River are ...

Electrons and protons of an atom are equal in number, because positively charged protons and ...

There is no doubt that the giraffes did not acquire these traits by planning themselves in a ...

Can these extremely convincing eyes be the result of a coincidence? How does the butterfly k ...

Inspired by the original Latin name for Wales, Cambria, Sedgwick named this period the Cambr ...

The prevailing thought until the early 20th century was that the universe was of infinite si ...

The laws of physics that emerged together with the Big Bang have not change at all over a pe ...

The common trait of the eyes and the wings is that they can only function if they are fully ...

The bedrock in Burgess Shale consists of schist—a rock consisting of thin strata, or layers. Wh ...

Further examination will lead him to realize that every detail in the structure of the eye is a ...

In the electrical equipment we use in everyday life, the strength of the electricity used—that ...

According to the theory of evolution, four billion years ago some inanimate chemical elements i ...

All birds build their nests so that they blend in with their natural environments. Let us consi ...