Why is such a tunnel needed?
Why is such a tunnel needed?
These are great for wildlife as they provide a safe crossing over high-speed highways. They are usually design to be in already existing migration paths where moving a proposed highway may not work and not disrupting migration paths is of importance.
Are there any predators smart enough to strategize like this?
it is the predators that build such passages. Have you ever seen any construction company building them? Even in the first photo that is under construction, there is not any human worker in sight
That under construction pit is the pit of the manlion. It’s similar to the pit of the antlion, except for construction workers.
They always have to deal with the manlion before they start building. Often by pouring concrete over it.