Theories are not something you believe in, just because someone else claims them to be true.
Theories arise as an attempt to explain a certain set of natural phenomena.
The theory of evolution by natural selection explains how some species get turned into others, how some species don't survive, hire some species don't need to change... it explains all currently known animal, plant and fungal life, based on fossils from several places and dated to several time instances of this planet's "lifetime".
Theories arise as an attempt to explain a certain set of natural phenomena.
The theory of evolution by natural selection explains how some species get turned into others, how some species don't survive, hire some species don't need to change... it explains all currently known animal, plant and fungal life, based on fossils from several places and dated to several time instances of this planet's "lifetime".