TV Nature - Season 26 Episode 7 : Crash: a Tale of Two Species Nature - Season 26 Episode 7 : Crash: a Tale of Two Species 7.8/10 by 39 users The link between the horseshoe crab, which has remained the same for some 350 million years, and the red-knot shorebird, is explored. The horseshoe crab's spawning grounds, the Delaware Bay, are an important feeding ground for the red knots on their way from Tierra del Fuego to the Arctic. Included: how biologists connected a drop in the red-knot population to a similar decrease in the crabs. Also: how horseshoe-crab blood is used to test human medicines. Details Casts Posters Images Title Nature - Season 26 Episode 7 : Crash: a Tale of Two Species Alternative Titles Nature with George Page First Air Date 1982-10-10 Last Air Date 2025-10-29 Number of Episodes 683 Number of Seasons 44 Genres Documentary, Family, Networks PBS, Casts Plot Keywords , Episodes List Nature Season 26 :Episode 1 Silence of the Bees Silence of the Bees 2007-10-28 Consistently stunning documentaries transport viewers to far-flung locations ranging from the torrid African plains to the chilly splendours of icy... Nature Season 26 :Episode 2 In the Valley of the Wolves In the Valley of the Wolves 2007-11-04 Consistently stunning documentaries transport viewers to far-flung locations ranging from the torrid African plains to the chilly splendours of icy... Nature Season 26 :Episode 3 The Cheetah Orphans The Cheetah Orphans 2007-11-11 Consistently stunning documentaries transport viewers to far-flung locations ranging from the torrid African plains to the chilly splendours of icy... Nature Season 26 :Episode 4 The Beauty of Ugly The Beauty of Ugly 2007-11-18 Consistently stunning documentaries transport viewers to far-flung locations ranging from the torrid African plains to the chilly splendours of icy... Nature Season 26 :Episode 5 The Desert Lions The Desert Lions 2008-01-06 Consistently stunning documentaries transport viewers to far-flung locations ranging from the torrid African plains to the chilly splendours of icy... Nature Season 26 :Episode 6 Parrots in the Land of Oz Parrots in the Land of Oz 2008-01-27 Consistently stunning documentaries transport viewers to far-flung locations ranging from the torrid African plains to the chilly splendours of icy... Nature Season 26 :Episode 7 Crash: a Tale of Two Species Crash: a Tale of Two Species 2008-02-10 Consistently stunning documentaries transport viewers to far-flung locations ranging from the torrid African plains to the chilly splendours of icy... Nature Season 26 :Episode 8 Arctic Bears Arctic Bears 2008-02-17 Consistently stunning documentaries transport viewers to far-flung locations ranging from the torrid African plains to the chilly splendours of icy... Nature Season 26 :Episode 9 What Females Want and Males Will Do (1) What Females Want and Males Will Do (1) 2008-04-06 Consistently stunning documentaries transport viewers to far-flung locations ranging from the torrid African plains to the chilly splendours of icy... Nature Season 26 :Episode 10 What Females Want and Males Will Do (2) What Females Want and Males Will Do (2) 2008-04-13 Consistently stunning documentaries transport viewers to far-flung locations ranging from the torrid African plains to the chilly splendours of icy... Nature Season 26 :Episode 11 The Gorilla King The Gorilla King 2008-04-20 Consistently stunning documentaries transport viewers to far-flung locations ranging from the torrid African plains to the chilly splendours of icy... Nature Season 26 :Episode 12 Superfish Superfish 2008-05-04 Consistently stunning documentaries transport viewers to far-flung locations ranging from the torrid African plains to the chilly splendours of icy... Nature Season 26 :Episode 13 Prince of the Alps Prince of the Alps 2008-05-11 Consistently stunning documentaries transport viewers to far-flung locations ranging from the torrid African plains to the chilly splendours of icy...