According to HowStuffWorks.com, walruses can sleep and swim at the same time, too. While in the water, walruses can choose between sleeping underwater or above. A walrus can hold its breath for five minutes, just enough time for a nap. For a deeper sleep, walruses inflate spaces inside their body, called pharyngeal pouches, with up to 13 gallons of air.
Jeremy Bentham introduced the principle of utilitarianism to the penal system. He suggested that the penal system should ensure that the punishment causes more pain to the criminal than the pleasure they derived from the crime. The situation would, in turn, deter the individual from future participation in the crime.
There were many scientists that helped discover DNA. James Crick and Francis Watson are generally credited with its discovery but there were other people who helped leading upâ¦ to the discovery. Maurice Wilkins also shared the Nobel Prize with Crick and Watson after he also elucidated the structure of DNA.