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Hank introduces us to the "simplest" of the animals, complexity-wise: beginning with sponges (whose very inclusion in the list as "animals" has been called into question because they are so simple) and finishing with the most complex molluscs, octopuses and squid. We differentiate them by the number of tissue layers they have, and by the complexity of those layers.
Дата первого эфира : Jan 30, 2012
Дата последнего выхода в эфир : Apr 30, 2024
Эпизод : 81 Эпизод
Сезон : 2 Сезон
Время выполнения: 15 минут
Студия: YouTube
Страна: United States of America
В ролях: Samuel Ramsey
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