Species of the Inner Earth, Part 2

Although Brrchucrcrclcx is the most abundant species living on the inner earth, the advanced, civilized humans are by far the smartest creatures of the Inner Earth, and are at the top of the food chain. The Inner Earth humans are similar to us, but are at least 200 years more advanced than we are. I estimate that their features are similar to ours, but their skin is resistant to a far larger spectrum of light than ours. The advanced humans have new energy sources that power their advanced flying machines. Pieces of magma from the mantle are used to power some of the major cities on the Inner Earth. The advanced humans wear fly radars in order to always know when a swarm is coming. When the radar goes off, a mask pulls over the head of each human in the vicinity of the swarm to protect the humans from the toxic fly spit. The biggest problem Inner Earth humans are faced with is the giant wolverines, which cause most human casualties. The anatomy of an advanced human is as follows:
-Two hearts which help them to be more efficient and stronger
-Slightly larger lungs that have the capacity for holding more air
-Large feet, about size 15 in U.S. shoe measurement
Needless to say these advanced humans would all be stars at any sport if they were to play on this earth. There is speculation that Usain Bolt, Calvin Johnson, Chuck Norris, Shaquille O'neal, and Abby Wambach are from the Inner Earth. I am sorry that our information is vague, but we are just now learning the Inner Earth language, which is very complicated. Basics of the Universal Inner Earth Language will be posted at a later date.