Challenge 2: Little Frogs

In this challenge we're going to experiment with directional selection pressure. This type of selection pressure tends to drive organisms' traits in one direction over successive generations. For the second challenge, see if you can create a stable population that has almost all little frogs. To get started, think about what survival advantages little frogs have over big frogs.

About how many flies should be in the pond?


How much energy does a frog gain when it eats a fly?


Frog Count
Frog Sizes