Describes the sea squirt in simple text and col. photos. Contents, index, glossary. 5-8 yrs.

Why have creatures evolved as they are? Which species have been the most successful? How do life forms adapt to a world dominated by nearly seven billion humans

Sea squirts and sponges are found in most seafloor habitats around the coasts of Britain and Ireland. Despite being the dominant life forms in many areas, these

From the author of What on Earth Happened? A radical new look at the story of life on Earth. Which living things have had the greatest impacts on the planet, ot

How old is the universe? When did life on earth begin? What happened to the dinosaurs? How was the moon created? How did ancient Chinese science shape the moder