Because everything in a Human is bigger than a sheep's because humans are bigger than sheep.
A sheeps heart is slightly bigger than a sheeps kidney.
yes
They sure are, much larger!
no
no
no
No not quite a sheep brain is only a bit smaller than a human brain maybe 1 1/2 fists roughly.
Because a cow is much bigger than a human!
Insect population is larger.
probably, they are significantly larger than us.
In a sheep brain, the olfactory bulbs are much larger than in a human brain.http://wiki.answers.com/Q/How_do_the_sizes_of_the_olfactory_bulbs_of_the_sheep_brain_compare_with_those_of_the_human_brain"
yes,there are more sheeps than people in New Zealand