Welcome to The Porthole
Short sharp looks at science.
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The Mystery of the Pregnant Rays
Divers find hundreds of normally solitary electric rays snuggled together
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Icelandic Horses Have Good Genes
New evidence suggests their unique gaits have a complex pedigree -
The Great Whale Conveyor Belt
The loss of whales has weakened the longest food chain on the planet -
The Importance of Muscle
In his new book, Michael Joseph Gross explores how the notion of strength has changed since Homer -
What Megalodons Tell Us About Gigantism
The biggest predator ever to have lived was a skinny beast -
The Perils of Early Springtime
How shifting seasons are altering allergies and agriculture
