That included the Milwaukee River, where it's likely no sturgeon spawning has taken place since 1843, when a dam was built across the river near North Avenue. Get daily updates on the Packers ...

With no natural reproduction to sustain its numbers and no regulations to protect it, the Milwaukee River's sturgeon population plummeted. It's likely the species was extirpated from the Milwaukee ...

Sturgeon can grow up to five metres long, weigh 150kg and live for more than 60 years. They are often misunderstood as 'river monsters' de to their size and historic appearance. But these gentle ...

2. Alligator Gar - Extreme angler Jeremy Wade heads to Texas on the trail of a river monster said to be as vicious as a shark and as big as an alligator - the monstrous alligator gar. More info ...