TORONTO - A proposed endangered species bill that's being called the strongest in North America faces its final procedural hurdle today in the Ontario legislature.

The bill updates the province's Endangered Species Act by expanding the number of protected animals in Ontario and allowing scientists to determine which species should be added to the list each year.

Natural Resources Minister David Ramsay says it's important for Ontario residents and everyone around the world that endangered species be protected, even if it comes with a cost.

The governing Liberals are pledging $18 million over four years to increase habitat protection for threatened animals.

Still, critics say farmers, conservation authorities and municipalities will end up paying out of pocket because of the new rules.

Both opposition parties say they will support the bill, although it's expected some members representing rural ridings will vote against it.

The bill faces its third and final reading today.

Ramsay said he's encouraged by informal talks with opposition members and strong support for the bill.

"I think most members of the Ontario legislature appreciate the need to protect our endangered species," he said.

"There's much work we need to do and if this legislation passes this afternoon - and I hope to get support from many of the people in the other parties - then we'll have the best legislation in North America."