Katie Kawa 
Las cadenas alimentarias en la charca (Pond Food Chains) [PDF ebook] 

A pond is a very unique habitat, home to a variety of freshwater plants, animals, and microscopic creatures. Readers discover how all of these living things are connected through food chains, as they learn fascinating facts about life in a pond. Detailed photographs give readers an up-close look at frogs, algae, and other creatures found in a pond. Fact boxes compliment the enlightening text, which explores important science concepts, including conservation and life cycles. Readers can see how these pond food chains come together as they explore an informative pond food web.