Spotting

Hmmm...that's odd. And now I'm noticing the frog too!

Thank you, Ava T-B!
...Although... To my memory I didn't submit this and I'm not sure how it got accredited to me. I'm trained in entomology and definitely know the difference.

I've moved this slug from the Arthropod category to the Other category for you. Snails and slugs are Mollusks. Arthropods have an exoskeleton and jointed limbs in at least one phase of their life. Think dragonfly, bee, crab, and ant.