KIDS TRIVIA

Detailed explanation-1: -Spiders probably evolved about 400 million years ago from thick-waisted arachnid ancestors that were not long emerged from life in water. The first definite spiders, thin-waisted arachnids with abdominal segmentation and silk producing spinnerets, are known from fossils like Attercopus fimbriungus.

Detailed explanation-2: -Arachnids are spiders, harvestmen, mites and ticks, and their relatives like scorpions that don’t live in Michigan. All arachnids have eight legs, and unlike insects, they don’t have antennae. The bodies of arachnids are divided into two sections, the cephalothorax in front and the abdomen behind.