It's Turtle Time

I can think back to 3 times when I've been out cycling in the morning, and have come across snapping turtles on the side of the road laying eggs.

Yep - they crawl out of their watery homes, struggle up the shore, crawl through fields and cross roadways, all to find a sandy place.

Where is the nearest sandy place - why the side of the road.

Today, I saw 2 female snapping turtles on the side of the road digging holes to lay their eggs.  Amazing.

I wonder how they determine if it is a good day to lay eggs?  It was hot yesterday (our high was ~ 91 degF).  This morning it was around 70 degF.  It was very humid.  The moon is a waxing gibbous at 60% full.

How do you think they know it is a good day to lay eggs?