Captive tigers in the United States outnumber those living in the wild. The World Wildlife Federation estimates around 5,000 of the big cats reside in the U.S., mostly owned by private citizens.
University of Arizona researchers have developed a new biological sensing method that can detect substances at the zeptomolar level—an astonishingly miniscule amount.
A new international collaborative study provides a list of the wildlife species present at the market from which SARS-CoV-2, the virus responsible for the COVID-19 pandemic, most likely arose in late 2019. The study is based ...
A group of Nagoya University researchers in Japan has synthesized 4- and 5-layered versions of the important electrical material perovskite. Analyzing the mechanism of ferroelectricity in the material, they found it has a ...
A team led by researchers at the University of Washington and the National Oceanic and Atmospheric Administration has uncovered key information about what resident killer whale populations are eating. Researchers had long ...
Researchers have developed a tool that provides new insights into cause-and-effect relationships between cells and how these change over time.
A new study has shed light on the challenges of converting one type of specialized cell into another, a process critical for advances in regenerative medicine. Despite recent progress in the field, a key obstacle in maintaining ...
Skin-secreted adhesives, or glues, are highly effective defense adaptations that have evolved recurrently in a small number of amphibians. From an ecological standpoint, this rapidly solidifying material—essentially, a ...
A hawk-eyed photographer has thrilled scientists by snapping a threatened bird of prey in Papua New Guinea, more than five decades since it was last officially documented, the World Wildlife Fund said Friday.
In an article recently published in Latin American Antiquity, Dr. Jill Mollenhauer argues that the Gulf Lowland Olmec, one of Mesoamerica's earliest major civilizations, sometimes incorporated aesthetic and ritual practices ...
