When did Overview Season 1 Episode 18 air?
Overview Season 1 Episode 18 aired on August 12, 2021.


Combining aerial cinematography with science storytelling to reveal both the natural phenomena and human forces shaping our planet. The series features stories about agriculture, engineering, the environment and natural wonders told by the scientists, rangers, farmers and artists who are responsible for innovating the world around us.
Horseshoe crabs spend most of their lives in the ocean depths. But every May and June, their spindly little legs will carry them 60 miles or more to congregate on sandy beaches up and down the Atlantic coast. Nowhere are their numbers greater than in Delaware Bay. As many as 30 million crabs — a population the size of Shanghai, China — descend on these shores. What are they all up to?
Direct answers for episode-level questions and details.
Overview Season 1 Episode 18 aired on August 12, 2021.
This episode runs for approximately 8 minutes.
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