All over the world, in all kinds of habitats, mothers bring forth new life. For many animals, such as reptiles and amphibians, mothering responsibilities end before the babies are even born. But mammal babies need their mothers--they need to be nurtured and nourished long enough to learn how to survive on their own.  All mammal mothers feed, protect, and teach their young, even though these tasks can challenge their own needs for survival. But a mammal baby’s journey to maturity varies dramatically depending on whether it is a bear or a bat, a shrew or a seal, a hippopotamus or a human. This fascinating look at life cycles portrays the normalcy of birth and breastfeeding and explores how mothers help 14 different mammals navigate the path from helpless infants to self-sufficient adults. E n todo el mundo, en todos los tipos de hábitats, las madres crean vidas nuevas. Para muchos animales, como los reptiles y anfibios, las responsabilidades de las madres terminan antes de que los bebés nazcan. Pero los bebés mamíferos necesitan a sus madres ― ellos necesitan que ellas los críen y alimenten antes de que puedan aprender a sobrevivir solos. Todas las madres de mamíferos alimentan, protegen y les enseñan a sus crías, incluso cuando esas tareas a menudo desafían sus necesidades de sobrevivencia. Pero el viaje de un bebé mamífero a la madurez varía dramáticamente dependiendo de si es un oso o un murciélago, una musaraña o una foca, un hipopótamo o un humano. Esta introducción fascinante al mundo de los mamíferos revela cómo catorce bebés mamíferos crecen, desde que son bebés indefensos hasta que se convierten en adultos independientes. I can guarantee you'll find yourself saying '¡No sabía eso!' as you read this book with kids. The information is amazing, and it is presented in clear, accessible language. This is definitely one of the best non-fiction books I've come across for Spanish learners! -- Jennifer Brunk, Reviewer This deeply entertaining and informative book, now in Spanish, holds readers riveted with its concise format, fun facts and engagingly literary style. Each of the 14 chapters follows a different mammal from birth through self-sufficiency, fascinating journeys through which young readers tend to start perceiving themselves as being part of a greater whole. Though details may vary significantly depending on whether the mammal is a bear, bat, hippo or human, the material remains highly relatable throughout. Students readily absorb the content and, in so doing, acquire a host of science and language skills with little to no conscious effort. Each section wraps up with exciting and memorable facts that propel the reader forward, eager to learn more! A free downloadable Teacher's Guide (available in English or Spanish from the Science Naturally website) expands the STEM content and offers engaging hands-on activities.