This could be used as inspiration, to make a design that runs flat and then stands up to let the next one get under.
Interesting simple four legged robot mechanism.
Turtles just hanging out, enjoying the sun (Photo: punchbrand)
Turtles (Photo: draik88)
Turtle pile (Photo: MJ Daniels-Sueyasu)
Honey Bee Swarm (Photo: J. Mulhaupt)
A swarm of Western Honey Bees (Photo: Alan Vernon)
Procession of larvae (Photo: Marc Morel)
Ants Tower (Photo: Charles Lam)
Castellers (Photo: Eric Sala & Tània García)