A new giant extinct shark, the Megalolamna Paradoxodon, was discovered through its fossilized teeth found by the researchers.
Images of hurricane Matthew show how big it was coming from the outer space.
As a hurricane, Matthew invades the places of Colombia, a photographer captured a mysterious yet beautiful image of the red lightning sprites above the storm.
Montana hiker Todd Orr suffered a double bear attack and immediately took to social media to share his experience and warn people.
Endangered frog population growing in Yosemite Park, but not in the rest of Sierra Nevada.
Scientists warned world leaders to act now because the Earth is getting warmer every day.
Oxygen level fluctuates by 0,7 percent over the past 800,000 years, according to the scientists.
The federal researchers were puzzled when they discovered the rich marine biodiversity of Hawaii, which has the least productive water in the Pacific.
India finally ratified the Paris Agreement -- as promised, on Gandhi's birthday.
Hranicka Propast, the world's new deepest underwater cave, beats the previous record holder, the Pozzo del Merro in Italy by 12 meters deep.
The Hawaiian yellow-faced bees, which are considered one of the most important pollinators, are currently listed endangered for the first time in the United States.