Why Did T Rex Have Such Tiny Arms?

To learn more about this topic, start your googling with these keywords: Evolutionary Mechanisms: Forces that change the frequency of genes in populations. Natural Selection: The process whereby traits that make animals more likely to survive and reproduce take hold in a population. Vestigiality: The process by which a genetically-determined structure loses some or all of its functionality. Genetic Drift: A change in the frequency of an allele due to random sampling. MinuteEarth is produced by Neptune Studios LLC https://neptunestudios.info If you like what we do, you can help us! - Become our patron: https://patreon.com/MinuteEarth   - Buy our merch: http://dftba.com/minuteearth   - Buy our book: https://minuteearth.com/books - Sign up to our newsletter: http://news.minuteearth.com   - Share with your friends and family - Leave us a comment (we read them!) Learn more about your ad choices. Visit megaphone.fm/adchoices