The term “arachnids” probably conjures up visions of spiders: from creepy, creepy things spinning silently from webs in the corner of the room to large, hairy creatures with fangs – like the mythical Shelob or Aragog – stalking you in the dark. . But just how big (and fierce) can these arachnids get? Better yet, who was the greatest to have ever lived?
Answering this question is deceptively simple. Arachnids are eight-legged arthropods, which means that this group contains not only spiders but also scorpions and ticks among others, much smaller and rarer groups. Of these, spiders are the most diverse group of arachnids (the 50,000th species was recently discovered, and this number should increase). The problem is that exactly what counts as an arachnid is a bit of an open question.
In the animal world, there are examples of creatures that use extremely fast speeds to capture prey – or avoid being captured. Now, for the first time, scientists have observed the use of ultra-fast action in a very specific scenario: as a means of escaping sexual cannibalism. Scientists have discovered male spiders of the species…
Saturn’s largest moon, Titan, is surprisingly similar to Earth in landscape formations, according to new models produced by planetary scientists. Seen from space, the moon, larger than the planet Mercury, has other similarities to Earth – including rain-filled rivers, lakes and seas – although on Titan rain is liquid methane , falling through nitrogen winds….
The fossils belong to three ichthyosaurs, and they may have been among the largest animals to ever live on Earth, according to a new study. Ancient creatures could reach 80 tons and 65 feet (20 meters) in length, rivaling modern sperm whales. These “fish lizards” first appeared in the ocean about 250 million years ago,…
When two bodies in space are close enough to each other, their gravity acts as a brake, slowing them down until one’s rotation “locks” to match its orbit. This tidal lock means that one side of the smaller body always faces the larger one – it’s the reason we only see one side of the…
During its one-year anniversary flight on April 19, the small helicopter took pictures of the striped parachute used in the landing of Perseverance – often called “7 minutes of terror” because it occurs faster than the radio signals can’t reach Earth from Mars – February 18, 2021. He also spotted the cone-shaped back shell that…
Saturday early risers will be treated to a planetary “conjunction” in the morning sky. According to NASA, the mixing of Jupiter and Venus, which will only last two days, will make the planets appear to be “almost colliding”. The two celestial bodies are among the brightest objects currently in the night sky. While those with…
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