Celiac disease tends to be found in families but it's inheritance pattern is not fully understood. In brief: See below. Celiac disease tends to be found in families but it's inheritance pattern is not fully understood.
As you may have guesses the fastest runners in the insect world are cockroaches, which can move almost one foot per second - translating to a little over 3 mph or 50 body lengths per second. This would be equivalent to a human sprinter running the 100 yard dash in 1 second or approximately 200MPH!
Scientist Piotr Naskrecki was in a South American rainforest when he heard a noise from the undergrowth. Expecting it to be a rat, he was left astonished when he saw this monster. It turned out to be the South American Goliath Birdeater - the largest spider in the world. Incredibly, the spider has a leg span which can grow up to a foot - which is the size of a child's forearm. They can also weight more than 6 ounces and come complete with two-inch fangs full of venom.