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How have work patterns changed in the last 100 years for people in developed nations? In developing nations?
Modern-day Whales
Current species of whales that descended from land-dwelling ancestors through a series of evolutionary transitions over millions of years.
Hippopotamus
A large, mostly herbivorous mammal native to sub-Saharan Africa, known for its large size, semi-aquatic habits, and aggressive nature.
Hemagglutinins
Proteins found on the surface of certain viruses, like influenza, that enable the virus to bind to and infect host cells.
Viral Surface
The exterior part of a virus particle that interacts with a host's cellular mechanisms, often through specific proteins or receptors.
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