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!
The fastest land snake in the world is the aggressive black mamba found in the southern part of tropical Africa. You might have heard stories about this snake overtaking people on galloping horses but although these snakes are fast, they aren't that fast.