Noise from road traffic and railways to be associated with an increased risk of all-cause dementia, scientists say.
Many animal appendages, such as avian beaks and mammalian ears, can be used to dissipate excess body heat.
"Sharks and rays are the canary in the coalmine of overfishing," a scientist says.
Several conservation projects protect the remaining populations of the continent's lions in their natural habitats.
The cockatoos have been observed making three types of different wooden tools, each with a different function.
Photo: Pixabay/BjoernSchrempp When most people in the United States think of invasive species, they might picture Burmese pythons in Florida or cane toads in Hawaii. Few Americans may think of shrubs as invasive species, yet these plants too can wreak havoc