The Evolution of Gorillas
What has Changed
Gorilla species are millions of years old and have changed a lot. Researchers believe that the gorillas developed into a larger and stronger species. "In doing so though they lost some of the agility that is found with other types of primates. Many speculate that gorillas may have once had a tail but that once they evolved to be so large their bodies were too heavy for them to swing from trees so they really no longer had any use for it." (1) Balance was another reason for the tail but as they evolved they were able to balance without it.
Being a bigger stronger species has helped them protect themselfs over the years.
What Gorillas Were Like
Truths About Embryology
B. Serial structures (e.g., segments, limbs) are usually identical in the embryo, but specialized and diverged in the adult.
C. Different species in the same Class (e.g., mammals) often have very similar embryos, even if the adult forms are quite different.
D. Embryonic structure is unrelated to "conditions of existence", unless the embryo is active (e.g., feeding)
E. Embryos are sometimes more highly "organized" than adults (e.g., some parasitic forms).
"Embryology helps support evolution because it shows that animals that are in the fetus stage are similar to other fetuses from other species." (1) For example, gorillas and monkeys may look the exact same as a fetus but when they are born they are completely different creatures. This shows that these animals were probably related before this time.