Tadpoles, precursors to frogs, are pond critters a mere 1cm (0.39 in) long.
But British science photographer David Spears took this remarkable image of a 14-day-old tadpole after he placed the tiny critter under a high-powered £90,000 ($144,936) electron microscope.
The tadpole appears to be smiling for the camera.
Spears, a former zoologist, caught the tadpole in his garden pond. The mouth parts with which tadpole is forming its ‘smile’ are used for scraping algae from the surfaces of rocks as food.
[Source: Daily Mail]