Sixty-three percent. That is the mind-boggling ratio of mammal species that disappeared from Africa and the Arabian Peninsula ...

Choose from Brain Anatomy Diagram stock illustrations from iStock. Find high-quality royalty-free vector images that you won't find anywhere else. Plans and pricing Video Back Videos home Signature ...

When a vaccine with the artificial virus was administered nasally to mice, immunity was achieved on the mucous membranes of their nasal cavity and lungs. The new type reportedly achieves ...

Based on an unprecedented discovery in Alberta, Canada, The Journey North, tells the epic tale of one of the largest dinosaur herds that ever lived, the Pachyrhinosaurus, through the eyes of one of ...

When used during an allergic emergency, Neffy delivers a metered dose of epinephrine into the nasal cavity. The epinephrine is rapidly absorbed through the nasal mucosa into the bloodstream. Clinical ...