How fast can the Mesosaurus swim?

Why are animals that only eat one thing in danger of being extinct? What does a smilodon look like? Can species that become extinct be replaced? Why is pandas fur hunted? What extinct horse of North America lived during the Pliocene period? Can humas drink pandas milk? Is the Brazilian rosewood tree going extinct? Why is bamboo disappearing from the jungle? What is the name of the most famous panda? Are rubber trees endangerd? Do peregrine falcons get shot by poachers? What is china doing to help pandas? What kinds of animals are endangered in England? Is the red tailed hawk in California an endangered species? What is done to prevent a plan from becoming confusing because of to much detail? Do megaladons still exists? Why is galapagos island endangered? What is another word for protected? Who decides what animals are in danger? What are some tertiary consumers in valleys?