Cachorros de león en la naturaleza

When winter hits, many people in colder climates spend most of their time indoors. But what do wild animals do? Some animals spend winters hibernating. Beginning readers will learn what hibernation is, why some animals hibernate and others don't, and how hibernating animals prepare for their long sleep. Full-color photographs grab readers' attention and allow them to draw connections to the narrative. Readers will love learning about this mysterious, restful time in some animals' lives.

La guerra que se extendió entre 1914 y 1918 fue conocida hasta el estallido de la Segunda Guerra Mundial (1939-1945) como la “Gran Guerra”, porque sorprendió a todos los contendientes por su magnitud. Comenzó siendo un conflicto meramente europeo, pero con el tiempo se convirtió en una guerra mundial en la que participaron también americanos, asiáticos, africanos o australianos y neozelandeses junto a los europeos. La guerra duró cuatro largos años en un enfrentamiento como la humanidad no había presenciado hasta entonces. Los países participantes se contaron por decenas, los...

Get to know two pen pals who live in different parts of the world. It is fun for them to write back and forth. They do different things at different times of the day and year. They tell each other about the events and traditions that take place during each month of the year. Do you know anyone who lives far away? What do you think they are doing right now?

Frogs and toads are some of the most confusing amphibians to classify. While some of their physical attributes are easy to tell apart, if we take a deeper look at these animals we find it’s not quite that simple. From poisonous skin and bulging eyes to their amazing life cycles, these creatures are as interesting to study as they are difficult to categorize. Once we break down the difference between “true” frogs and “true” toads, it’s easy to see why so many have trouble telling the two creatures apart!