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Arthropods have jointed limbs, hard exoskeletons, segmented bodies, and molt--or shed--their shells in order to grow. Crabs, beetles, centipedes, squillas, pill bugs, and walking sticks demonstrate a variety of ways some of the one million different species of arthropods walk.
(Source: DCMP)
Part of the "Branches on the Tree of Life" series. Phylum Arthropoda is the most luxuriant branch on the tree of life. Covers phylum characteristics and three major arthropod classes: Crustaceans (copepods, waterfleas, branchiopods, decapods, and barnacles), Chelicerates (scorpions, pseudoscorpions, spiders, ticks, and mites), and Uniramians (centipedes, millipedes, and insects). Focuses on adaptations, life cycles, and evolutionary relationships in each section.
This episode describes the characteristics of five species: the ant lion, the mantis, the walking stick, the Luna moth, and the hickory horned devil (regal moth larva). It highlights insect life processes such as metamorphosis, molting, reproduction, physiology, camouflage, and predator-prey relationships. Part of the "Backyard Bugs & Other Arthropods" series.
This episode focuses on the adaptations of arachnids and insects. Spiders inhabit backyards that design and build intricate silk webs. They have also developed numerous adaptations that make them efficient predators. Backyards also have insects living above and below the water's surface. More amazing adaptations are introduced including incomplete metamorphosis, eye development, and remarkable breathing apparatus. Part of the "Backyard Bugs & Other Arthropods" series.
This program explores how arthropod biodiversity helps humans. Insects are both producers and decomposers, and these functions are essential to the health of the planet. Part of the "Backyard Bugs & Other Arthropods" 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.
Arthropod are the most abundant and diverse group of animals in the world. They inhabit every continent and every ocean, and they outnumber all other animal groups combined. This episode investigates what arthropods are, where they come from, and how they have succeeded through genetic mutation, diversity, exploitation, and coevolution. Part of the "Nature's Microworlds: Insect Specials" series.
Explores the fascinating features of the animal kingdom. The taxonomy of the different invertebrate and vertebrate phyla are the focus of the program, with special emphasis placed on the evolutionary relationships of the various phyla. Each of the major phyla are discussed, going from simple to more complex organisms. Other terminology includes: sponges, cnidarians, flatworms, roundworms, segmented worms, mollusks, arthropods, echinoderms, fishes, amphibians, reptiles, birds, and mammals.
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.
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Resources to teach younger students about animals
A collection containing 58 resources, curated by DIAGRAM Center
