The young when hatched are naked and helpless.
The duck, on the other hand, when newly hatched, and for nearly a month after, has the sternum wholly cartilaginous.
The larva is, hatched two or FIG.
Similarly the newly-hatched larva of an oil-beetle (Meloe) is an active little campodeiform insect, which, hatched from an egg laid among plants, waits to attach itself to a passing bee.
The grubs, when hatched, start galleries nearly at right angles to this, and when fully grown form oval cells in which they pupate; from these the young beetles emerge by making circular holes directly outward through the bark.