ENVIRONMENT & CLIMATE

World's Second-Deepest Blue Hole Found Along Mexico's Coast; Ecological Marvel May Shed Light on Earth's Past Climates
![20-Foot Male Killer Whale Shows Off Hunting Tactic by Catching 6.5-Foot Sea Lion [Photos]](https://d.sciencetimes.com/en/full/46090/20-foot-male-killer-whale-shows-off-hunting-tactic-catching-65-foot-sea-lion-photos.jpg?w=237&h=131&f=0ca78bbaea64f407de3afcaa1674835c)
20-Foot Male Killer Whale Shows Off Hunting Tactic by Catching 6.5-Foot Sea Lion [Photos]
Giant Red Devil Squid Aggressively Attacks, Bites Diver [Watch]

Elephant Seals Can Sleep 1,200 Feet Under the Ocean Without Drowning During Their Deep Dives

3,300-year-old Ancient Egyptian Chapel, Tombs Found in Historic Saqqara
'Ghost' Tulare Lake in California Returns After It Dried Up 80 Years Ago

Bird Social Life: Video Calling With Friends Makes Pet Parrots Feel Less Lonely, New Study Shows

What, Why, Where, and How: Science's Top 10 Great Unknowns
215-Pound Monster Alligator Gar May Be a World Record; How Big Can These Prehistoric Fish Grow?
7-Kilometer Thick Cloud Hides the Sun, Turns Istanbul’s Day Into Night [Watch]

Ancient Princesses Played Vital Political Role in Massive 'Xiongnu' Empire; Earliest Fortifications of Great Wall of China Could Have Been Constructed To Stop Raids

Life on Earth: How Did the First Living Organisms Thrive and Evolve?
Top 10 Bizarre Prehistoric Marine Animals That Would Be Classified as Sea Monsters If They Exist Today

How To Survive a Tornado? Here are Some Safety Tips When This Natural Phenomenon Hits Your Area
Most Popular

Will 3I/ATLAS Hit the Sun? Interstellar Comet To Reach Closest Distance on 29 October

Is NASA Wrong Again? Kristian Harloff Claims Space Agency Miscalculated Mysterious Object's Path Toward Earth

Nvidia's Jetson Thor Could Make Humanoids Smarter Than Ever

Hellfire Missile Video Reveals MQ-9 Reapers Being Used for Aerial Combat





