Meet Stella — the pup who knows how to use 29 human words

"What a shock," said no dog lover ever.

  • A speech language pathologist has taught her puppy Stella to use 29 words.
  • Stella "speaks" by stepping on large buttons programmed with recordings of words.
  • The dog expresses her desires, comments on household events, and offers opinions.
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How to spend your money, according to science

It's not the act of buying but how you spend money that improves happiness and life satisfaction.

(Photo: Sony Pictures)
  • To prove money can't buy happiness, people point to millionaires and lottery winners who ruined their lives.
  • Psychological studies have shown that learning how to spend your money can improve overall happiness.
  • We explore eight money-spending principles that research suggests can bolster life satisfaction.
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Scientists find a marker for schizophrenia in human hair

Not only will this help diagnose schizophrenia earlier, but it also points to a possible cause of schizophrenia.

  • Schizophrenia can be difficult to diagnose early, which is why it's important to identify physical markers that appear in schizophrenics but not the healthy population.
  • To determine this, researchers examined mice with schizophrenia-like symptoms and compared them to a healthy group. They found that the mice with schizophrenia-like symptoms had elevated levels of MPST, an enzyme that produces hydrogen sulfide.
  • Not only does this provide a biomarker for schizophrenia, but it also suggests that schizophrenia may come about due to what the researchers called "sulfide stress."
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Something weird and wonderful is at a Paris zoo

The blob that's astonishing science gets its own exhibit.

Image source: Simia Attentive/Shutterstock
  • In recognition of its amazing traits, a zoo has just invited slime mold into its ranks.
  • Neither plant, and probably not a fungus, slime molds may represent a major turning point in our understanding of intelligence.
  • Of course, the French zoo is calling it "Le Blob."
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Why should you always assume you're wrong? Science.

When it comes to scientific theory, (or your personal life) be sure to question everything.

  • The theories we build to navigate the world, both scientifically and in our personal lives, all contain assumptions. They're a critical part of scientific theory.
  • Cognitive psychologist Donald Hoffman urges us to always question those assumptions. In this way, by challenging ourselves, we come to a deeper understanding of the task at hand.
  • Historically, humans have come to some of our greatest discoveries by simply questioning assumed information.
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