* A mole is a unit of measurement: It's a huge number (6.022 x 10^23), used in chemistry to represent the number of atoms or molecules in a substance.
* Animals are not measured in moles: We typically count animals in units like individuals, herds, or flocks.
Therefore, it's impossible to say which has more animals – a "mole" of elephants or chickens. Both quantities are astronomically large and don't relate to how we usually count animals.