When we last checked in, George had gotten a female in his pen pregnant - his first recorded mating activity in 36 years of captivity.
She laid nine eggs, but they turned out to be infertile, just like all of George's previous offspring.
Now George has fathered another clutch of five eggs, and everyone's crossing their fingers again.
Scientists quickly divided the eggs between two incubators, one set at 29.5 °C and one set at 28 °C.
Why? Temperature determines what sex the hatchlings will be. Cooler eggs give you males, and warmer ones turn out female.
(Wild tortoises bury their eggs; deeper ones stay cooler, ensuring good mix of genders.)
Giant tortoise eggs take 120 days to develop and hatch. So, come November we'll know if George's efforts paid off this time around.