IUisGrate

Anatomy Evolves and Solves

[IUisGrate @ConnerJ14128528]

Did you know Amphioxus, a 500 myo species, contains genetic material outlining the layout of the brain. Go us for using it to make tools- something that separates us from other species. @EvolHumAnatM300 #M300InnerFish

[IUisGrate @ConnerJ14128528]

Although the spine contains curves in the Lumbar, Thoracic, and Cerivical regions allowing us to balance our weight over our hips, it puts the integrity of our vertebrae at risk for injury. Unfortunate trade offs for bipedalism.
@EvolHumAnatM300 #M300InnerFish

[IUisGrate @ConnerJ14128528]

Did you know our ancient ancestors, primates, developed the first opposable thumbs for grasping and color vision for finding ripe foods? Thanks monkeys. We owe you one @EvolHumAnatM300 #M300InnerFish

[IUisGrate @ConnerJ14128528]

If you didn't know, there is a gene nicknamed Sonic Hedgehog which determines how many fingers you have and where they will be. Very cool stuff @EvolHumAnatM300 #M300InnerFish

[IUisGrate @ConnerJ14128528]

It all comes down to our DNA folks. We share it with our ancient ancestors like tectonic - the very first species of fish who housed a shoulder girdle, elbow, wrist, and neck allowing it to waddle onto land and begin a cascade of evolution. @EvolHumAnatM300 #M300InnerFish

[IUisGrate @ConnerJ14128528]

Fish, being cold blooded are able to have their gonads deep inside their body - close to their heart. Humans, on the other hand, evolved a way to compensate for their warm bodies by moving theirs outside the body - hello scrotum. @EvolHumAnatM300 #M300InnerFish

[IUisGrate @ConnerJ14128528]

Just told my girlfriend we developed from reptiles and she says "nope, I'm not related to that. Not happening."
@EvolHumAnatM300 #m300innerfish

[IUisGrate @ConnerJ14128528]

Gorgonopsid - A branched species from reptiles that began to develop K9 teeth. Wow. Sweet. @EvolHumAnatM300 #m300innerfish

[IUisGrate @ConnerJ14128528]

Tritheledont- an animal long down our anatomical line of evolution that is part mammal, part reptile. Very Cool. @EvolHumAnatM300 #M300InnerFish