Although the black-tailed jackrabbit and the antelope jackrabbit appear nearly identical, tiny
differences in ear size, fur coloring, and speed mark them as separate species.

As the boys sleep, military airplanes battle fiercely above the island. none of the boys sees the explosions and flashes in the clouds because the twins sam and eric, who were supposed to watch the signal fire, have fallen asleep. during the battle, a parachutist drifts down from the sky onto the island, dead.