Evolution simulators

Using on-line simulators, it is possible to model the evolution of simple creatures: can you use your knowledge from class to explain what is happening in each of the following simulations?

Simulator 1

​Can you explain the changes in the species over time? (Temporarily not working due to FLASH issues)

Simulator 2

What observations can you make about the shape of the organisms best adapted to the environment?

Simulator 3

Simulator 4
What is the selective pressure here?
Evolve the blobs