Wildlife

Monarch caterpillars eat only milkweed and cut trenches to drain its latex. Here is how to identify them and why tropical milkweed causes harm.

Crested geckos live 15 to 20 years, and heat is the biggest threat to that. Here is what determines lifespan and how to give one its full span.

Moose eat 40 to 60 pounds of twigs and water plants a day, and dive 20 feet for sodium. Here is the seasonal diet and why feeding them kills.

Scorpions eat live arthropods and can survive a year without a meal. Here is how they hunt without seeing, the two-stage venom, and what to feed a pet.

A Gila monster clamps and chews venom in, causing severe pain but almost never death. Here is the first aid, why bites are rare, and the diabetes drug link.

Male southern house spiders are mistaken for brown recluses constantly. Here is how to tell them apart and why this harmless spider is worth keeping.

Antennae length settles it instantly. Here is how crickets and grasshoppers differ in sound, hearing, diet and behavior, plus where katydids and locusts fit.

Wolf spider mothers carry their egg sac on their spinnerets and then their young on their backs. Here is what spiderlings look like and what to do indoors.

Ticks have eight legs and attach for days, bed bugs have six and feed in minutes. Here is how to tell them apart and why the risks differ so much.

Carpet beetles cannot bite. The rash is an allergic reaction to larval bristles, which is why it returns until you find the source.