How much do phystrictist?

Phystrictids, commonly known as "true whales," are a group that includes baleen whales and some species of toothed whales. They vary widely in size, with the largest species, the blue whale, reaching lengths of up to 100 feet. The population sizes and conservation statuses of phystrictids can differ significantly among species, with some, like the humpback whale, recovering well due to conservation efforts, while others, such as the North Atlantic right whale, remain critically endangered.