Bøger af Cathleen McConnell

Marine mammals known as cetaceans are broken into two large groups: toothed whales (including dolphins and porpoises) and baleen whales. One group has a single blowhole to breathe air, the other has two. One group has tall dorsal fins to help maintain balance as they chase prey. The other scoops up water and prey in their large mouths as they swim slowly along--they don't need large dorsal fins. One group uses echolocation, the other doesn't. Learn more about what these animals have in common and how they are different in this latest installment of the Compare and Contrast Series.

"Seals and sea lions look very similar and it's sometimes difficult to tell which is which. Both of these marine mammals swim with flippers and can be found in oceans all over the world. One has visible ear flaps while the others' ears have no external flaps. One swooshes through the water using their back flippers and the other uses their front flippers to swim. On land, one bounces along and the other can "walk" on their flippers. Learn about the similarities and differences between these marine mammals in this latest addition to the Compare and Contrast Series!"--

"Seals and sea lions look very similar and it's sometimes difficult to tell which is which. Both of these marine mammals swim with flippers and can be found in oceans all over the world. One has visible ear flaps while the others' ears have no external flaps. One swooshes through the water using their back flippers and the other uses their front flippers to swim. On land, one bounces along and the other can "walk" on their flippers. Learn about the similarities and differences between these marine mammals in this latest addition to the Compare and Contrast Series!"--

Translation of: Otters: River or Sea? A Compare and Contrast Book.

"Otters are often found at zoos and aquariums, but how do these playful animals live in the wild? With 13 different otter species, some are best suited for fresh water and gracefully move on land and in the water; others prefer the kelp forest of the sea using tools to eat their favorite foods. There are many similarities between river otters and sea otters, but there are also vast differences. Explore fascinating facts about these playful, aquatic mammals, meet the species, and awe at the adorable photos in this installment of the Compare and Contrast Book series"--