Sam chooses a guinea pig named Henry to be her pet, envisions a dog named Nelly visiting and helping her younger brother Liam feel comfortable in his kindergarten class, and encourages Liam to also get a guinea pig as a pet.

Sam chooses a guinea pig named Henry to be her pet, envisions a dog named Nelly visiting and helping her younger brother Liam feel comfortable in his kindergarten class, and encourages Liam to also get a guinea pig as a pet.

Children's book about a guinea pig named Ginny in a pet store who wants to be adopted.

Stories of ten men and women, from the 1770s to the present, who devoted their lives, and sometimes risked them, to answer some of the big questions in science and medicine.