Sentences with phrase «surface loaches»

This allowed surface loaches to enter the system for the first time, and they have followed their own evolutionary trajectory since.

Most obviously, they have lost the dark brown blotches typical of surface loaches.

The cavefish's eyes are about 10 per cent smaller than those of surface loaches, and their barbels are longer.

Not exact matches

The pale - coloured loach, shown above, is thought to have diverged from surface fish as glaciers from the last ice age receded some 16,000 to 20,000 years ago.

The pale - coloured loach is thought to have begun to diverge from surface fish as glaciers from the last ice age receded some 16,000 to 20,000 years ago, linking surface and cave waters.

«Despite this short time span, the fish show trademark adaptations to cave life compared with loaches from surface locations nearby, including a pale body colouration, much smaller eyes, plus larger nostrils and barbels,» she says.