Heady Success
Hammerhead sharks might strike you as strange: or, they might just strike you. Among the oddest-looking of sharks, all nine types of hammerheads sport heads with sides stretched wide, like the head of a hammer on the end of its handle. Some look like shovels,…
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Geology
A National Park of Caves
Carlsbad Caverns National Park has been designated as a world heritage site because of its unique and…
Astronomy
Introduction to Constellations
'Constellation' is the name we give to seeming patterns of starsin the night sky. 'Stella' is the Latin word…
Biology
Regeneration 101
So who is the greatest regeneration superhero of all? Among vertebrates the lowly salamander is the champion…
Astronomy
The First Starlight
Imagine being able to see our Universe 14 billion years ago when it was just a baby. If we had a time machine,…