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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New tarantula species from Angola distinct with a...
on February 12, 2019 at 3:46 pm
A new to science species of tarantula with a peculiar horn-like protuberance sticking out of its back was recently identified in central Angola, a largely underexplored country located at the intersection of several Afrotropical ecoregions. […]
The widow next door: Where is the globally...
on February 11, 2019 at 6:15 pm
The noble false widow spider, Steatoda nobilis, native to Madeira and the Canary Islands, has been introduced accidentally to countries around the globe, causing considerable concerns. Thus, a team of researchers sought to understand how the species became so widespread and predict where it could appear next. According to a recent study the countries which are at an immediate risk of invasions are South Africa, Australia and New Zealand. […]
Visual guide to identify invasive self-cloning...
on January 30, 2019 at 12:57 pm
Researchers have created a visual guide to help identify and control the Asian longhorned tick, which transmits a fatal human disease in its native countries and threatens livestock in the United States. […]
Scientists explore tick salivary glands as tool...
on January 29, 2019 at 5:48 pm
The salivary glands of some tick species could become important research tools for studying how viruses are transmitted from ticks to mammals, and for developing preventive medical countermeasures. Tick salivary glands usually block transmission, but a new study focuses on the role of salivary glands in spreading flaviviruses from black-legged ticks (Ixodes scapularis) to mammals. […]
Why some mites are mightier than others: The...
on January 25, 2019 at 2:42 pm
Unlike most male animals, some males of the social spider mite engage in deadly fights with rival males. Their level of aggression (low, mild or high) is related to the geographical location, and the resulting climate, of the colony in which the mites live. It appears that as the temperature rises, so do the tempers of the male spider mites. […]
Life quickly finds a way: The surprisingly swift...
on February 19, 2019 at 1:40 pm
The Cambrian explosion more than 500 million years ago is often considered biology's "big bang". […]
The battle against bugs: it's time to end...
on February 18, 2019 at 1:50 pm
Insects are important wildlife often overlooked in urban habitats. What we do notice are the cockroaches, ants and mosquitoes in and around our homes. All too often we reach for the insect spray. […]
Sound waves let quantum systems 'talk' to one...
on February 18, 2019 at 1:40 pm
Researchers at the University of Chicago and Argonne National Laboratory have invented an innovative way for different types of quantum technology to "talk" to each other using sound. The study, published Feb. 11 in Nature Physics, is an important step in bringing quantum technology closer to reality. […]
What happens to the natural world if all the...
on February 18, 2019 at 1:17 pm
There are an awful lot of insects. It's hard to say exactly how many because 80% haven't yet been described by taxonomists, but there are probably about 5.5m species. Put that number together with other kinds of animals with exoskeletons and jointed legs, known collectively as arthropods – this includes mites, spiders and woodlice – and there are probably about 7m species in all. […]
From fear of spiders to fascination
on February 14, 2019 at 2:00 pm
It's early in the morning. The buzzer goes off, you switch on the light and immediately panic: a large spider sits on your bedroom wall! […]