Ferns are among the oldest living plants, with fossil records dating back 383 to 393 million years ago. These plants are ...

They diversified into many of the modern fern families and species during the “great fern radiation” of the Cretaceous period, from 145 to 66 million years ago. Like the clubmosses (see Plant ...

A spring walk in search of a rare fern becomes a reflection on memory, nature and the quiet resilience of a threatened ...

On a spring morning, a search for a specific species of fern leads to a discussion on ancient plant history, vascular beauty ...

Fractals are sometimes referred to as a “visual representation of math.” ...

Others separate these functions to have one leaf type for photosynthesis ... Within a family known as chain ferns ...