Presumably, that is a dinosaur egg. Aside from the obvious fact that humans came along millions of years after dinosaurs went extinct, dinosaur eggs actually were nowhere near that big. One source reports the largest oval-shaped dinosaur egg ever discovered as being only 18 inches long and 6 inches wide laid by an Oviraptorid. Another source reports it as being only 12 inches long with a 10 inch girth laid by a 40-foot-long full-grown Sauropod.
Ergo, big things sometimes do come in small packages.
Presumably, that is a dinosaur egg. Aside from the obvious fact that humans came along millions of years after dinosaurs went extinct, dinosaur eggs actually were nowhere near that big. One source reports the largest oval-shaped dinosaur egg ever discovered as being only 18 inches long and 6 inches wide laid by an Oviraptorid. Another source reports it as being only 12 inches long with a 10 inch girth laid by a 40-foot-long full-grown Sauropod.
Ergo, big things sometimes do come in small packages.