3) In osulches, there are 2 types: ones that run fase and those that run slowly. The fast birds can reach up to 40 miles an hour. Jackals love to eac oscich, and they can reach speeds of up to 35-40 miles per hour. A lock of ostrich will lay - 10 eggs (each mother only lays 1). but many rodenes break into the eggs and eat the ſecus before they hatch. Nature selects for which ostrich?​