Cells are the smallest unit of life. Cells in multicellular plants and animals are arranged into tissues, organs and organ systems. Cells. Tissues. Organs. Organ systems. And the organism itself.

Scientists found the first concrete evidence of plant-eating in Sinopterus atavismus, changing what we knew about pterosaurs.

The ability of some animals to dynamically change color to match the brightness of their surroundings is one of nature's ...

The advantages and disadvantages of hot weather What we can do to stay cool and safe during warm weather How hot weather affects plants and animals This resource is suitable for weather topics for ...

Invasive tawny crazy ants have been wreaking havoc across the U.S. Gulf Coast from Florida to Texas, disrupting ecosystems ...

Watch this incredible clip of a stingray gobbling up a fish and then read all about stingray hunting and digestion.

New research reveals common farm pesticides may be harming male fertility. Studies show neonicotinoid insecticides reduce sperm count and damage repro ...

Young adults are seeking ways to enhance focus, mental clarity, and mental stamina, yet nutrition is often overlooked as a ...

Why do spider webs have zigzag designs? New research reveals how they act like vibration alarms to help the spider sense its ...

Two people died Saturday after a speeding Tesla eluded Colonial Heights police, crashed into a tree and caught fire in ...