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 Black Mamba is also the fastest land snake in the world, able to reach speeds in excess of 12 miles per hour (20kph). However it uses this speed to escape danger, rather than catch prey. The name black mamba is somewhat confusing because it contradicts the snake's actual color.