The axolotl lives in only one place outside captivity: the waters of Lake Xochimilco, in Mexico City. Now, a team of scientists is working to secure its future by looking to its past.

Decompose shapes into rectangles to determine the area of the composite shape using the area formula for rectangles. Decompose shapes into rectangles to determine the area of the composite shape.

Dogs in Australia are partnering with people to save other species from grave threats to the island continent’s unique fauna.