You may picture spiders the size of your hand, or even bigger, when you ask were spiders big back then. Some prehistoric spiders grew larger than many modern species, and a few fossil finds show truly impressive body sizes. Fossils show that spiders have lived on Earth for at least 380 million years. Spiders changed…
Alaska has spiders, and you do not need to panic if you spot one. Most spiders in Alaska are small, shy, and more interested in insects than in people. Alaska’s cold climate limits how many species can thrive there. Yet plenty of spiders still survive. You may find spiders indoors, in gardens, along wood piles,…
Spiders breathe through special organs in their abdomen, not through a nose or mouth like you do. Most arachnids use book lungs, tracheae, or both. These structures move oxygen into the body for gas exchange. Tiny internal breathing surfaces let oxygen pass into their hemolymph and carry carbon dioxide back out. That setup works well…
Yes, spiders live in Hawaii, and you are likely to see a mix of harmless web builders, house spiders, and a few larger species that look much scarier than they are. Most encounters happen in gardens, around homes, or in damp outdoor areas. Truly dangerous bites are uncommon. Hawaii has some native species you may…
Yes, spiders lived alongside dinosaurs, and the fossil record shows they did. Spiders and other arachnids were already part of Earth’s ancient land life long before dinosaurs appeared. Some spider relatives go back even further in time. Spiders survived during the dinosaur era, and some arachnids lived tens of millions of years before dinosaurs ever…
Spiders stick to walls because their feet are built for tiny-scale contact. Their legs use thousands of microscopic hairs and fine tip structures that create enough adhesion and friction to hold on, even on smooth surfaces. Biology and physics work together to let spiders climb. When a spider places its feet on a wall, its…
Spider cannibalism is real, but not every spider hunts its own kind all the time. Most spiders do not spend their lives eating other spiders, but cannibalism can happen when mating, feeding, or competition pushes them into it. The idea that spiders are always brutal toward each other goes too far. Spider behavior changes a…
Spiders lived long before dinosaurs, and the fossil record supports that fact. You can trace prehistoric spiders and spider evolution back hundreds of millions of years, well before the first dinosaurs appeared. Ancient spiders and spider-like relatives already lived on land while early forests were still taking shape. Their remains help you see how these…
Spiders usually enter through small gaps, open doors, loose screens, and other tiny openings that are easy to miss. Once inside, they look for food, shelter, and quiet spots. This is why you may keep spotting them in the same rooms. Small cracks, clutter, and easy access usually allow spiders to slip in unnoticed. A…
Spiders do not feel drawn to light the way moths are. When you ask are spiders attracted to light, the short answer is that most are not. You may still see them gather around lamps, porch bulbs, and window lights because those spots often bring dinner with them. Spiders gather near light as a hunting…