are there different sorts of atoms in a human and an animal body?

Question: are there different sorts of atoms in a human and an animal body?
- Keywords:
  animal,
  atom,
  cell,
  human
Asked by guineapigs&me to Anna, Hayley, Iain, Rebecca on 23 Jun 2015. This question was also asked by kitkat.
- Iain Bethune answered on 23 Jun 2015:
  
  Mostly we are made up of the same stuff – mainly Carbon, Oxygen, Hydrogen, and smattering of other elements e.g. Potassium, Calcium, Sodium…
  
  All living things are made up of similar cells, with DNA is the basic molecule of life, so it’s no surprise we’re mostly made of the same stuff – just built up in a different shape.

Question: are there different sorts of atoms in a human and an animal body?