We studied what happens when guys add their cats to their dating app profiles

43% of people think they can get a sense of someone's personality by their picture.

Photo by Luigi Pozzoli on Unsplash

If you've used a dating app, you'll know the importance of choosing good profile pics.

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Animal magnetism: Bacteria may help creatures sense Earth's magnetic fields

An intriguing theory explains animals' magnetic sense.

Credit: PedroNevesDesign/designer_an/Shutterstock/Big Think
  • Some animals can navigate via magnetism, though scientists aren't sure how.
  • Research shows that some of these animals contain magnetotactic bacteria.
  • These bacteria align themselves along the magnetic field's grid lines.
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Sharks flee in terror when killer whales show up

Sharks fear killer whales. How does this impact the ecosystems they share?

Credit: Tory Kallman/Shutterstock
  • A new study finds that sharks will flee areas they met orcas in for up to a year.
  • Killer whales are known to eat sharks, but it is unknown if the sharks are fleeing because they know that too.
  • The discovery will change our understanding of how marine ecosystems evolve.
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Megalodon’s actual size, recalculated

A new study bases its calculations on more than the great white shark.

  • Previous estimates of the megalodon's size were based solely on its teeth compared to the star of "Jaws."
  • The prehistoric monster is as closely related to other sharks.
  • Imagine just a dorsal fin as tall as you are.
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Study identifies animal species that may be susceptible to coronavirus

On the list of animals at risk are several endangered species.

Image source: Jorge Franganillo/Unsplash
  • SARS-CoV-2 enters our cells by binding with ACE2 receptors.
  • A study finds many animals may provide a similar point of entry for the infection.
  • COVID-19 has already been seen in a range of non-humans.

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