"Flowering plants, cone-bearing plants, ferns, and mosses make up the four main plant groups. ... This ... book investigates the life cycles of each of the four main plant groups"--Back cover.
"An explanation of the life cycle and life span of sheep, using up-close photographs and step-by-step text to follow a sheep's growth process from embryo to lamb to mature sheep"--Provided by publisher.
"An exploration of the life cycle and life span of pigs, using up-close photographs and step-by-step text to follow a pig's growth process from embryo to piglet to mature pig"--Provided by publisher.
"An explanation of the life cycle and life span of goats, using up-close photographs and step-by-step text to follow a goat's growth process from embryo to kid to mature goat"--Provided by publisher.
"An explanation of the life cycle and life span of chickens, using up-close photographs and step-by-step text to follow a chicken's growth process from egg to chick to mature chicken"--Provided by publisher.