Nature & Environment
Introducing mammals
...becomes clearer when you work out its weight as a percentage of the mother’s weight. But to compare ‘like with like’ you first need to express each measurement in the same units, in this case grams (g). 8 kg is equivalent to (8 × 1000) grams = 8000 g, so 0.5 g as a percentage of 8000 g is (0.5/8000) × 100. This calculation comes to a little over 0.006% –...