Understanding where and in what quantities essential elements for life have existed on Earth's surface helps explain the ...

New methods help scientists easily measure the surface area of underwater plants. This is crucial because these plants host ...

The collapse of tropical forests during Earth’s most catastrophic extinction event was the primary cause of the prolonged global warming which followed, according to new research.

Butterflies (Papilionoidea) come in a remarkable variety of colors and patterns, from the orange majesty of the monarch to the lustrous red and blue of the peacock butterfly, but all butterflies ...

Inappropriate state of cable products in electric power supply lines can cause fire accidents. To be able to foresee cable faults it is necessary to develop an approach for estimating state of a cable ...

Plants are classified as annuals, biennials or perennials based on their life cycles. Biennials, like foxglove, have a vegetative year followed by a flowering year. Perennials, including woody ...

Plants are classified as annuals, biennials or perennials based on their life cycles. Biennials, like foxglove, have a vegetative year followed by a flowering year. Perennials, including woody ...

Plants are classified as annuals, biennials or perennials based on their life cycles. Biennials, like foxglove, have a vegetative year followed by a flowering year. Perennials, including woody ...

Plants are classified as annuals, biennials or perennials based on their life cycles. Biennials, like foxglove, have a vegetative year followed by a flowering year. Perennials, including woody ...

Annual plants Annual plants are those which complete their full life cycles in one season. Most annuals are planted in spring, bloom in the summer and die in the fall.