The Ancient Creatures that Shaped all Animals with an Exoskeleton

Eventually vertebrates settled on having four limbs that they gifted to all of their descendants, however arthropods are different and have created forms with large variety in number of limbs. So why do they have such a varying number of limbs? To support me on Patreon (thank you): https://www.patreon.com/MothLightMedia To donate to my PayPal (thank you): https://www.paypal.me/mothlightmedia To buy merchandise: teespring.com/en-GB/stores/moth-light... Email: [email protected] If I have used artwork that belongs to you but have neglected to credit it this will just be because I was unable to find one. If this has happened please contact me and I will add a credit. Some Art work has been altered for the purposes of bettering them for video format; these alterations were done independent from the artists who created the original work, so they are not responsible for any inaccuracies that could have occurred with the changes being made. Sources: https://royalsocietypublishing.org/doi/10.1098/rsos.242122 https://royalsocietypublishing.org/doi/10.1098/rsos.191200 https://www.annualreviews.org/content/journals/10.1146/annurev-ecolsys-011720-124437 https://durham-repository.worktribe.com/output/1398598/ https://www.cell.com/current-biology/fulltext/S0960-9822(15)00831-3 https://royalsocietypublishing.org/doi/pdf/10.1098/rspb.2024.2950 https://www.nature.com/articles/s41467-018-03464-w https://pmc.ncbi.nlm.nih.gov/articles/PMC5042098/ https://royalsocietypublishing.org/doi/10.1098/rsbl.2022.0497