Böcker av Cathy Evans

Everything you ever wanted to know about sleep but were too exhausted to ask.> ¿    What are circadian rhythms and how do they affect our energy levels throughout the day? ¿    What are dreams for and how do they happen? ¿    What are the different stages of sleep? ¿    Do animals experience sleep the same way we do? With clear texts and bright, distinctive illustrations, this is a great introduction to a subject that has fascinated us since ancient times, and an engaging tie-in to biology and natural sciences curriculums.

This beautifully presented science book explores the biology of reproduction, birth and early parenting in the warm-blooded class of animals that we humans belong to. Through short, concise texts and luxurious illustrations, we learn what happens when an egg is fertilised and how an embryo develops. We find out why some mammals have multiple births, whilst others only have single pregnancies. We learn how the gestation process differs in marsupials and how platypuses and echidnas breastfeed (spoiler alert, milk seeps out of their nipple-less chests!) We discover the importance of breastmilk and find out how different species look after their newborns. This book presents a refreshingly straightforward introduction to the facts of life, without being a sex-education book, per se, and also offers remarkable insights into the rich and fascinating diversity of mammal species on our planet.

You won't believe your eyes... or ears or nose....! Learn how our bodies make sense of reality in this fact packed book about sensory perception.