Biology

Spontaneous generation

Ecosystem concept

Vaccination

Gene concept

Natural selection vs. the inheritance of acquired characteristics

Species concept

The nature of fossils

Mary Agnes Chase, feminist and botanist

Ynes Mexia, plant explorer

Mexia found her calling late in life, but her contributions to botany are impressive...

Carlos Finlay and the Yellow Fever vector

Cuban Doctor Carlos Finlay successfully identified mosquitos as the vector for the transmission of deadly Yellow Fever...