DigitalVinyl wrote:

I spotted three empty curled shells...from snails I presumed. Bigger
than 1/2" diameter. I spotted another two in a row of tomato plants.

I'm guessing this is snails? I'm guess these guys cast off their
shells and grow new ones?

No. Something yanked them out of the shells and ate them. Birds
will do this.

Tsu

--
To doubt everything or to believe everything
are two equally convenient solutions; both
dispense with the necessity of reflection.
- Jules Henri Poincaré