Ep 09 - Vestigial Organs 1/2 (Discovering Religion) скачать в хорошем качестве

Ep 09 - Vestigial Organs 1/2 (Discovering Religion)

The ninth installment of my original series, "Discovering Religion". In this episode I explore such concepts as descent with medication, homologous structures, and vestigial organs. This is one of my favorite videos of the series, as it serves to display the powerful mechanism of natural selection that has shaped all life on this planet. In part one of the episode I explore various vestigial structures found throughout the Animal Kingdom: Presence of a reduced pelvis and femur in whales, as well as the development and subsequent reduction of hind limb buds in the cetacean fetus. The loss of eyes in cave dwelling animals, such as the Blind Mexican Tetra and the Blind Texas Salamander. The Dandelion contains sexual organs, such as a stamen, pistil and pollen, although this plant reproduces through an asexual process known as "apomixis". Certain reptiles of the genus Cnemidophorus only exist in the females sex and reproduce asexually, although females still act like males by continuing to engage other females in matting rituals. Monotremes, like the platypus and echidna, have both an "egg-tooth" and a caruncle, structures used by animals like reptiles and birds for hatching through hard egg shells. Marsupials also express transient egg shells and caruncles during their embryonic development. There are also many variety of animals that display wings although they are unable to fly, such as beetles of the genus Lucanidae, as well as birds like the Kiwi, Ostrich, and Penguin. ----------------------------------------- MUSIC CITED: Fila Brazilia - Another Late Night ----------------------------------------- PLAYLIST: http://www.youtube.com/view_play_list... TRANSCRIPT: http://discoveringreligion.net/?p=194 WEBSITE: http://www.discoveringreligion.net FACEBOOK: http://www.facebook.com/pages/Discove... .