As we were looking for bugs to feed Tuck, Charlie found a pill bug (Woodlouse) hatching babies from her brood pouch. 

He placed it in my hand and they began crawling all over. 

I then put them on the light table with some magnifying glasses and the kids came up with this super-magnifyer. 

After we watched them for a while, we took them to the garden, since the mom stays with her babies.