Complex sentence: On Being the Right Size is a 1928 essay by J. B. S. Haldane which discusses proportions in the animal world and the essential link between the size of an animal and these systems an animal has for life.
Split into simpler sentences: On Being the Right Size is a 1928 essay by J. B. S. Haldane. It discusses proportions in the animal world and the essential link between the size of an animal and these systems an animal has for life.