Tree of Life
Plant Flower, Tree
Invertebrate Octopus, Ant, Bee, Butterfly, Spider, Lobster
Vertebrate Fish, Seahorse, Ray, Shark, Frog, Turtle, Tortoise, Dinosaur
Bird, Ostrich, Owl, Crow, Parrot
Mammal Bat, Rabbit, Giraffe, Camel, Horse, Elephant, Mammoth
Whale, Dolphin, Walrus, Seal, Polar Bear, Bear, Cat, Tiger, Lion, Dog, Wolf
Monkey, Chimpanzee, Human
These are organized by a classification scheme developed exclusively for Cosma. More…
spider : any of an order (Araneae synonym Araneida) of arachnids having a short, usually unsegmented abdomen linked to the cephalothorax by the pedicel, chelicerae modified into poison fangs, and two or more pairs of spinnerets at the posterior end of the abdomen for spinning threads of silk for various uses (as in making cocoons for their eggs or webs to catch prey) — Webster
Spiders are air-breathing arthropods that have eight legs and chelicerae with fangs that inject venom. They are the largest order of arachnids and rank seventh in total species diversity among all other orders of organisms. Spiders are found worldwide on every continent except for Antarctica, and have become established in nearly every habitat with the exceptions of air and sea colonization. — Wikipedia
Arachnology is the scientific study of spiders and related animals such as scorpions, pseudoscorpions, and harvestmen, collectively called arachnids. Those who study spiders and other arachnids are arachnologists. — Wikipedia
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Hold the mustard: What makes spiders fussy eaters
on April 15, 2019 at 2:50 pm
It might be one of nature's most agile and calculating hunters, but the wolf spider won't harm an insect that literally leaves a bad taste in its mouth, according to new research. […]
Case of tick-borne relapsing fever in Mexico
on April 11, 2019 at 6:51 pm
Tick-borne relapsing fever (TBRF) is a recurring fever caused by exposure to infected Borrelia bacteria. Several cases have been reported in Mexico, but the disease gets little attention. Now, researchers describe the details of an additional case of TBRF in Sonora, Mexico in 2012. […]
Giant Antarctic sea spiders weather warming by...
on April 10, 2019 at 2:23 pm
Scientists have wondered for decades why marine animals that live in the polar oceans and the deep sea can reach giant sizes there, but nowhere else. Zoologists went to Antarctica to test the prevailing theory -- the 'oxygen-temperature hypothesis' -- that animals living in extreme cold can grow to giant sizes because their metabolisms are very slow. […]
Spider monkeys lower their 'whinnies' when making...
on April 3, 2019 at 7:54 pm
Isolated spider monkeys (Ateles geoffroyi) likely lower the pitch of their calls to improve the chances of re-establishing contact with their group, according to a new study. […]
Think the tick threat grows with the grass? Not...
on April 3, 2019 at 7:54 pm
Scientists report on their quest to get to the bottom of a common assumption about the urban landscape: ticks like long grass. In 144 tick drags in 16 suburban lawns in Springfield, Mass., researchers looking at mowing frequency and native bees did not find a single tick. […]
Global warming hits sea creatures hardest
on April 24, 2019 at 5:00 pm
Global warming has caused twice as many ocean-dwelling species as land-dwelling species to disappear from their habitats, a unique Rutgers-led study found. […]
In order to recognize spatial structures, bat...
on April 24, 2019 at 11:59 am
The sonar system of bats exploits spatial information in a way similar to our sense of sight, despite the different anatomy of eyes and ears. In a new study, scientists at the Max Planck Institute for Ornithology in Seewiesen and the Ludwig Maximilians University Munich have now shown that echoes contain information that allows bats to distinguish differently structured surfaces. On a turbulent water surface for example, a fidgety prey item acoustically stands out even against the clutter of […]
A new eye on the cosmos
on April 23, 2019 at 11:10 am
How do galaxies form and evolve? And how do central supermassive black holes form in galaxies and influence their hosts? Those are two of the big questions that Tufts astronomers hope to answer when they start using a new, highly sensitive instrument that's set to come online in a few years on a landmark telescope in Hawaii. […]
Glowing millipede genitalia help scientists tell...
on April 18, 2019 at 6:41 am
Sometimes, it's really easy for scientists to tell species of animals apart—they'll be obviously different shapes or colors. Other times, different species will look nearly identical to the naked eye. In those cases, scientists need to turn to techniques like DNA analysis to tell them apart. Or, like researchers at the Field Museum discovered when studying some near-identical millipedes, you can sometimes just shine a blacklight on them, and under the ultraviolet light, parts of the […]
The sticky science of underwater adhesives
on April 17, 2019 at 11:54 am
Mussels stick to rocks on the seafloor, to aquatic plants, and—to the consternation of boaters—they can hitch rides fastened to seafaring vessels no matter their composition: metals, rubber, glass, wood and more. […]