Researchers used gene-editing technique CRISPR to modify the DNA sequences of house spiders, causing them to produce red ...

They have some black markings, too. However, these are hard to see without a magnifying glass because the spiders are so small. The red-backed jumping spider is striking indeed! It has a black ...

This juvenile Ecuadorian red bloom tarantula (Pamphobeteus ... defensive pose warned the photographer to stay back. He discovered the spider while hiking through the jungle at night in La Maná ...