00:00You know those giant anchor chains from ships?
00:02Farmers use them to clear entire forests in minutes.
00:05This is called chaining.
00:06Two bulldozers drag a massive chain between them,
00:09knocking over everything in its path.
00:10The chain weighs several tons.
00:12When pulled tight, it generates enough force
00:14to snap tree trunks and rip out roots instantly.
00:17It's so efficient, it can clear 10 to 20 acres per day.
00:20That's why it's been used since the 1950s.
00:22The chain doesn't discriminate.
00:24Small trees, thick brush, saplings, everything goes down.
00:27Nowadays, it's used for habitat restoration,
00:30removing invasive species to bring back native vegetation.
00:33Sometimes the simplest solution is just a really big chain.
