I always wondered about the technology that goes into the Panama Canal and its operation.
Going through the locks the other day we saw a tow locomotive sitting in the repair shop on the centerwall with its “hood up.”
You can clearly see the drum with the tow wire and you would think it is driven by a simple electric motor but clearly there is a bit more technology involved.
On the other end of the spectrum is the crocodile. We usually see a couple near the locks, most of the time on the sea side since they seem to like brackish water.
Check http://www.flmnh.ufl.edu/cnhc/csp_cacu.htm for more info.
Here are three of the big boys sunning themselves.