My little Rose-hair tarantula molted! This one only molts about once per year so I was lucky to catch him just as he was starting.
Tarantulas molt by flipping onto their back, popping the top off their exoskeleton and sliding it off like a jumpsuit. Their new exoskeleton is ready underneath, but it’s still soft and rubbery and takes a few days to harden. For young tarantulas like this one, this is when they grow.