| So here, we have a backswimmer, an unusual insect because it swims backwards. |
| Because the backswimmer is lighter than water, it rises to the surface after releasing its hold on the bottom vegetation. |
| The grousewinged backswimmer, N. undulata, found in North America, can often be seen swimming under the ice during the winter. |
| The backswimmer is often seen floating on the water surface with its legs extended, ready to dart away if disturbed. |
| Holding its pale back away from the sunlight makes the backswimmer harder for predators to spot. |
| When the arriving female mosquitoes detect a chemical emitted by the backswimmer, they are less likely to lay eggs in that pool. |
