Resultado de "Mary Holland" em Todas as categorias

Along a stream a dam pops out of the water. Beavers are busy at work! These aquatic mammals have unique traits that aid them in building the perfect lodge to raise young beavers and keep predators away. Do these beavers ever take a break? Follow along as they pop through the winter ice to begin the busy year of eating bark, building dams, and gathering food just in time for winter to come again.

Can you smell with your feet? Do you dig your claws into a river's muddy bank to climb up and bask in the sun? Animals' legs are different from humans' in so many ways! Find out why strong talons suit a raptor and webbing is perfect for water dwellers as author Mary Holland continues her Animal Anatomy and Adaptations series by exploring the ways insects, amphibians, reptiles, and mammals make their way in the world.

¿Cuáles son algunas de las cosas que nosotros podemos aprender sobre los animales tomando en cuenta la forma de sus bocas o picos? ¿Qué podemos deducir sobre los animales con dientes filosos comparados con los que tienen dientes largos y planos? ¿Existen algunos animales sin bocas? En esta secuela sobre las series de Adaptaciones de animales, la galardonada fotógrafa y educadora naturalista Mary Holland comparte las fascinantes bocas de los animales con los lectores de todas las edades.

National polls show that Americans are increasingly concerned about vaccine safety and the right to make individual, informed choices together with their healthcare practitioners. Vaccine Epidemic focuses on the searing debate surrounding individual and parental vaccination choice in the United States. Featuring more than 20 experts from the fields of ethics, law, science, medicine, business, and history, Vaccine Epidemic urgently calls for reform.