Related Clues:
- Looking back, central to travel by rail without one immature crawler
- Future imago
- Tadpole or caterpillar, say
- Polliwog, for one
- Blowfly larva
- eg Caterpillar
- Grub, caterpillar
- Legless grub
- Immature life form
- Grub that was found right inside volcanic rock
- Grub available in spectacular variety
- Caterpillar perhaps showing some cellular variation
- Mum's grand - picked up grub
- E.g. a caterpillar
- Form of insect right inside rock