They found the offsprings' beaks to be 3 to 4% larger than their grandparents'. The Grants had documented natural selection in action. While beak size is clearly related to feeding strategies ...

Darwin visited four continents on the ship HMS Beagle. Darwin’s theory of evolution by natural selection challenged the idea that God made all the animals and plants that live on Earth.

Note that this change was not due to pollution making the moths darker. The dark variety had always existed in small numbers, but only had a selective advantage when the selection pressure changed.

they often point to the human eye. How could something so complex, they argue, have developed through random mutations and natural selection, even over millions of years? If evolution occurs ...

Natural selection operates against individuals who ... which is usually well defended against natural enemies (Figure 4). In nearly all eusocial species, colonies are protected through structural ...

They are subject to "natural processes that cause countless different configurations to be formed.” And only a small fraction ...

Mutations generally fall into two types: point mutations and chromosomal ... snake venom and therefore much of snake evolution. Natural selection in some ancestral snakes has favored enzymes ...

Most famously, he had the revolutionary idea of evolution by natural selection entirely independently of Charles ... Bates introduced Wallace to the methods and delights of collecting beetles. Four ...

Andrew Kenny questions whether human intelligence is declining, comparing modern education, literature, and achievements to ...

From whale watching at the Point Reyes Lighthouse to strolling through the Cypress Tree Tunnel, the national seashore offers ...

South Africa is home to an impressive number of safari game reserves, highlighting the country’s invaluable contribution to wildlife tourism.

The NFL recognized high-level wide receiver talent in last year's draft and validated those evaluations by taking three with ...