Evolutionists claim that fish evolved from invertebrate sea creatures; amphibians and present-day fish from one supposedly "ancestral" fish. Reptiles in turn arose from amphibians; birds and mammals developed independently from reptiles. And, finally, apes and human beings evolved from a common ancestor, now extinct. In order to prove these claims scientifically, it is necessary to find intermediate forms to show the transitional changes between one of these "former" species and their more recent counterparts. But as mentioned earlier, there is no trace of these imaginary creatures. On the contrary, all present-day species have the same characteristics that they possessed millions of years ago. This 150-million-year-old sea urchin is just one of the hundreds of thousands of fossils that prove this.