How does a fish climb a ladder?
It sounds like the start to a bad joke, but fish really do climb ladders. And they do it quite well! Fish ladders, also known as fishways, are specially designed diversions to help fish overcome human-made barriers as they make their way upstream. Since 2000, fish ladders have been installed in all locks, weirs and … Continue reading How does a fish climb a ladder?
Copy and paste this URL into your WordPress site to embed
Copy and paste this code into your site to embed