Can you crack Killer Sudoku's mathematical twist? Try our classic expert Sudoku here. The objective of Sudoku is to fill each row, column and sub-grid with exactly one of each number from 1-9. In ...

Scientists confirmed that West Coast transient killer whales actually form two separate groups split between inner and outer coastal habitats. Inner-coast whales hunt smaller prey in shallow, ...

Scientists have uncovered an astonishing new chapter in humpback whale migration: two whales were found to have traveled between breeding grounds in Australia and Brazil, crossing more than 14,000 ...