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Christmas Island, discovered December 25, 1643, is just a spec of land in the Indian Ocean. The annual red crab migration at the beginning of the rainy season, however, is so massive it can be seen from the air. It has been named a wonder of the natural world. Follows this terrestrial arthropod from its rainforest burrow, across dangerous landscape to the ocean to mate.
(Source: DCMP)
One of the oldest, most successful arthropods on Earth, horseshoe crabs have existed for over 350 million years. But in recent years their populations, have crashed by 75% from overfishing, resulting in moratoriums on catching them. Few of us know that most human lives depend on the valuable, shockingly blue blood of these "living fossils." Even more surprising, a tiny shore bird, the red knot, is so dependent on them that the crabs' population crash may make these long-distance flyers extinct. This mystery of mutual dependencies emerges from filmmakers and scientists revealing a disturbing ecology story ranging from the Arctic regions to the southern tip of the Americas.
During horseshoe crab spawning season, volunteers are dispatched along the Mid-Atlantic coast to help scientists track their populations. Learn how citizen scientists track the data to help preserve the horseshoe crab. Part of "The Remarkable Horseshoe Crab" series.
In each episode, viewers are given clues about a hidden animal inside a magic box. Can viewers use all the clues to correctly guess the mystery crustacean in this episode? Part of the "Zoobabu" series.
In this footage, two citizen scientists are studying butterflies and conducting biological surveys of varied ecosystems in the Red Hills and Apalachicola National Forest. They document the wide diversity of butterflies in the region. Part of the "Roaming the Red Hills" series.
In each episode, viewers are given clues about a hidden animal inside a magic box. Can viewers use all the clues to correctly guess that the mystery animal in this episode is a hermit crab? Part of the "Zoobabu" series.
Horseshoe crabs are "living fossils" more closely related to spiders and scorpions than they are to crabs. They get their name from the smooth, hard shell (exoskeleton) that is shaped like a horseshoe. Part of "The Remarkable Horseshoe Crab" series.
Mars definitely has a reddish tint, and even the ancient Egyptians called Mars “The Red One.” Where does the redness come from? The rocks on Mars are full of iron, and the dust from those rocks swirls around the atmosphere, which makes the planet appear red. Part of the “Mars in a Minute” series.
The ancestors of the horseshoe crab have roamed Earth for over 450 million years. They may look creepy, but they are not dangerous. Their numbers have been declining, and scientists have been trying to help preserve them. Part of "The Remarkable Horseshoe Crab" series.
The horseshoe crab is a remarkable prehistoric animal and a modern medical marvel. Middle school students in South Carolina investigate horseshoe crabs, their life cycle, habitats, and the threats that affect them. One of nature’s puzzle pieces, they fit into place as an important partner with humans.
Molecular biologist Scott Santos and his team at Auburn University are studying an unusual and endangered ecosystem in Hawaii called Anchialine pools. A threatened ecosystem, Anchialine pools are inland lava depressions found near the ocean that feed off fresh water aquifers. Little is known about the creatures and plants that live in these brackish waters, but a number of the lava pools are being destroyed by invasive species and development. With support from the National Science Foundation, Santos and his team captured video and photographs of this unique habitat during a two month field study. He hopes his research will help save the pools before they totally disappear. One of the most famous creatures in the Anchialine pools is a legendary tiny red shrimp.
In this classic story from Eric Carle, Hermit Crab has outgrown his snug little shell so he finds himself a larger one. And along the way he finds many new friends to decorate and protect it. Based on his book by the same title.
Bill Nye goes deep inside Jupiter’s mysterious Great Red Spot. First discovered over three centuries ago, this super storm is a gigantic, swirling mass of gas and clouds that is bigger than three Earths combined. NASA’s “Juno” mission hopes to reveal many of the secrets of the Great Red Spot. Part of the “Why With Nye” series.
How do horseshoe crabs keep humans healthy? They have blue, copper-based blood, which quickly clots in the presence of bacterial toxins. Medical researchers use it to test intravenous drugs, vaccines, and medical devices, ensuring that they are free of bacterial contamination. Part of "The Remarkable Horseshoe Crab" series.
The Red Centre of Australia is one of the most inhospitable environments on Earth, and yet it teems with an extraordinary array of wildlife. Most of which is found nowhere else. Some of the secrets of this location include the diversity of Australia's various environments. Part of the "Nature's Microworlds" series.
A quick glance at the marsh next to Saquatucket Harbor in Harwich Port, Massachusetts, reveals right away that some of the grass is missing. The cordgrass there, and all around Cape Cod, has been slowly disappearing for decades. Marine ecologist Mark Bertness of Brown University studies this critical ecosystem, which protects our coastal environment by nurturing a complex web of plants and animals, filtering nutrients, and serving as a critical storm barrier. Bertness says the marshes are being overrun by purple marsh crabs because their main predators, blue crab and finfish, are being overfished. So, the purple marsh crabs are free to gorge on healthy fields of cordgrass and once done feeding, they leave behind nothing but lumpy fields of mud.
In part six of the exploration of north Florida and south Georgia, children immerse themselves in turtles, frogs, fish, and butterflies found living along the Ochlockonee River. Part of the "Roaming the Red Hills" series.
Meet an education specialist from the Delaware National Estuarine Research Reserve. She says becoming a scientist is all about being curious, and she helps researchers count the horseshoe crabs on the Atlantic coast. Part of "The Remarkable Horseshoe Crab" series.
Dr. David Kimbro and Dr. Randall Hughes investigate a new idea: can crabs hear? They design an experiment to test their new theory and explore the effects it may have on the crabs. Part of the series "In The Grass, On The Reef."
Scientists have identified a crustacean that likes to feast on wood. The squat lobster scavenges for fallen trees and even the occasional shipwreck. This discovery is helping scientists learn more about animals colonizing the deep sea. Part of the "News of the Day" series.
Showing collections 1 to 5 of 5
Biology related concepts
A collection containing 59 resources, curated by Benetech
A collection of Chemistry related resources
A collection containing 67 resources, curated by Benetech
A collection of simulations from PhET.
A collection containing 15 resources, curated by Charles LaPierre
3D models and images of the entire periodic table of elements
A collection containing 118 resources, curated by Library Lyna
Resources to teach younger students about animals
A collection containing 58 resources, curated by DIAGRAM Center
