A rasp, a saw, a sponge—all built into animals

Remastered historic close-up of rows of curved teeth on a Trochus radula.

THE RASP · Rows of teeth on a snail’s radula scrape food from a surface.

Remastered historic drawing of the toothed sawfly ovipositor, with an enlarged detail.

THE SAW · A female sawfly’s toothed egg-laying tool makes a slit in plant tissue.

Remastered historic drawing of a blowfly’s expanded mouthparts and patterned feeding surface.

THE SPONGE · Broad lobes at a fly’s mouth collect liquid food.

Three tiny tools, three different jobs. Gosse’s microscope reveals a snail’s feeding ribbon, a sawfly’s egg-laying apparatus and a fly’s liquid-feeding mouthparts.

THE RASP · Rows of teeth on a snail’s radula scrape food from a surface.
https://askpandi.com/media/editorial/content-archaeology-final9-20261013/9f0a0df7f9019f16-assets/snail-rasp-book.webp
THE SAW · A female sawfly’s toothed egg-laying tool makes a slit in plant tissue.
https://askpandi.com/media/editorial/content-archaeology-final9-20261013/5d9da5adf49da6c2-assets/sawfly-saw-book.webp
THE SPONGE · Broad lobes at a fly’s mouth collect liquid food.
https://askpandi.com/media/editorial/content-archaeology-final9-20261013/43a89dfe6d232eba-assets/blowfly-mouth-book.webp

A rasp, a saw, a sponge—all built into animals

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