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bioNRICH is the area of the stemNRICH site devoted to the mathematics underlying the study of the biological sciences, designed to help develop the mathematics required to get the most from your study of biology at A-level and university.

More or Less?

Are these estimates of physical quantities accurate?

Time to Evolve

How many generations would link an evolutionist to a very distant ancestor?

Counting Dolphins

Age 14 to 16
Challenge Level
It is not envisaged that this problem would be used as a class problem.  It is more appropriate for an enthusiastic student or small group of students looking for a challenge to work on independently.