• Some have a vagina, some have a penis. An exceptional few have both !
  
• Some have blonde hair, some have dark hair, some have red hair
• Some have light coloured skin, some darker coloured skin and some very dark skin. An exceptional few have no skin pigmentation.
  

The above are readily recognisable differences in physical attributes.

As we grow, differences in physical attributes become become more noticeable. Whether these attributes are genetic, acquired or environmentally influenced is not being argued, but observed. Differences include :

• Height
• Length of torso and limbs
• Body build
• Body mass
• Strength, endurance and perceived fitness
  
• Athletic Ability
• Hand, foot and eye co-ordination
• Eyesight and hearing
  
• Perceived attractiveness

Intelligence is a subjective attribute. I think most would agree that abilities of a neural nature are largely inherited. Measured intelligence (usually IQ) is subjective, and can vary for an individual over both short and long periods of time. Just because a test shows a high IQ for an individual, it doesn't mean they are "smart". Similarly a low IQ result does not mean that person is "dumb". I know individuals with a high IQ that have done some pretty dumb things. Similarly I know some supposedly low IQ individuals who have made some pretty smart moves and are quite wealthy as a result.

Intelligence (measured or perceived) aside, we grow to have different (what I will call "neural") abilities. Whether inherited, learned, or influenced by the environment differences include :

• Ability to reason, apply logic
• Ability in abstract thought
• Artistic ability
  
• Emotional response

We also have combined physical and neural ability that differentiate in things such as :

• Singing
• Playing a musical instrument
• Sport and games requiring both physical and mental strength and agility
• Artisan skills

Whether inherited or learned, there are some attributes that have racial correlation. By way of example :

•  Ethiopians and Kenyans seem to have an edge in long distance running
• Anecdotally, Vietnamese and Pakistanis are good at mathematics
• Anecdotally, some North American Indians are the best steeplejacks
  

This is not a perfect world, and unfortunately, or fortunately from some perspectives, there are differences linked to age and gender :

• A young person may not yet be strong enough to compete in open competition
  
• An older person may no longer be physically able to play certain activities
• A male cannot naturally conceive and bear a child
• A female cannot naturally sire a child
• Some can neither conceive nor sire a child
• A male cannot breast feed a baby
• A male does not menstruate