Evolution Can't Explain All

Summary


Mark Edwards (Readers' Forum, Jan. 15) wrote that understanding evolution is as simple as a predator having a certain color coat. But not all animals are so simple.

A bat uses sonar to fly and find food. Sonar is a highly sensitive system, not a genetic trait that could be developed over time. A certain South American beetle shoots hydrochloric acid to ward off predators. Two separate jets of harmless chemicals, sprayed together, form this acid, protecting the insect without harming it. Where did it learn that formula?

See the full content of this document

Extract


Evolution Can't Explain All

There are myriad...

See the full content of this document

Sponsored links




ver las páginas en versión mobile | web

ver las páginas en versión mobile | web

© Copyright 2012, vLex. All Rights Reserved.

Contents in vLex United States

Explore vLex

For Professionals

For Partners

Company