After using a technique called molecular clock analysis, researchers have proposed that the origin of animals could be 200 million years earlier than thought.

The earliest animals may have evolved hundreds of millions of years before their first unmistakable fossils appear in the ...

Philosopher Susana Monsó's book Playing Possum, newly translated into English next month, makes the strong case that many animals big and small understand the concept of death. Reading time 8 minutes ...

Groundbreaking study shows machine learning can decode emotions in seven ungulate species. A game-changer for animal welfare? Can artificial intelligence help us understand what animals feel? A ...

How do animal behavior researchers feel about the feelings of animals? A new survey helps to answer that question. The journal Royal Society Open Science published a survey of 100 researchers of ...

The broad consensus is that many species are sentient. Humans have had relationships with their pets for thousands of years, talking to them, coddling them, and imbuing them with human attributes. But ...

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Your pet may not be able to speak, but that doesn’t mean you two can’t find ways to communicate. Here’s how to talk and listen to the beloved animals in your life, according to experts.

Animals doing math might sound like something out of a viral video, but researchers say it’s surprisingly real. Scientists call it “numerosity”—the ability to recognize quantities without actual ...