Baby warty birch caterpillars defend the world’s smallest territory ... And from time to time the youngsters beat the leaf ...

As they cling to leaf tips, newborn warty birch caterpillars produce vibrations that can ward off invaders approaching their ...

Some creatures defend territories extending over several kilometers, but when Jayne Yack (Carleton University, Canada) ...

The two-lined hooktip moth lays its eggs in even rows on twigs and leaves of birch and alder trees. When the eggs hatch, almost inscrutably small larvae emerge, some as short as half a millimeter. But ...