Prince, ZooMontana's 18-year-old Amur tiger, died unexpectedly Tuesday afternoon, probably due to complications from an aggressive cancer.

Carlos Sousa Jr. and his friend’s brother desperately tried to distract the 350-pound Siberian tiger, but the big cat instead came after Sousa.

Found primarily in temperate and tropical waters at depths between 130 and 3,000 feet (40-900 meters), these sharks are rarely encountered by humans. Unlike many slow-reproducing shark species, ...