This is a bump because I constantly forget to give a look see of that livejournal page here: >>48527

Recently I had the luck observing the changes of pine cones due to humidity. They close up when wet, and open as they dry. Here videos:
https://invidious.snopyta.org/watch?v=Lu73owwimOU
https://youtube.com/watch?v=Lu73owwimOU [Embed]
https://invidious.snopyta.org/watch?v=pmjP8o9Fias
https://youtube.com/watch?v=pmjP8o9Fias [Embed]