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Master Timeline

First True Dinosaur: Eoraptor lunensis.

One of the earliest known true dinosaurs in the Dinosauria order is Eoraptor lunensis. From this predatory bird-like precursor, the birds and dinosaurs emerged. This direct-line ancestor evolved into theropods, birds, sauropods and ornithischians. Eoraptor emerged during the Late Triassic period, approximately 231.4 million years ago, in what is now Argentina. It is considered one […]

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Higher Play Evolves in Social Mammals

In more advanced forms, play becomes a complex tool for social bonding, emotional learning, and cognitive development. Carnivores like wolves and cats engage in cooperative games that refine group hunting skills, while elephants are known for their intricate, playful interactions that build emotional connections. Among primates, play takes on its most elaborate forms, fostering problem-solving,

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Early Play Evolves in Mammals

Play in its most basic form likely began as simple, physical interactions aimed at honing survival skills. Modern animals like squirrels, kangaroos, and hedgehogs still exhibit these foundational behaviors, engaging in chasing, pouncing, and wrestling. These actions help young animals develop coordination and reflexes while providing a safe way to practice life-essential tasks. Surprisingly, even

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Red-Green Algae Split

About 200 million years after the broader separation of animals, plants, and fungi, red and green algae evolved from a common ancestor. Green algae later gave rise to land plants, with all land plants descending from green algae around 475 million years ago. Both green algae and land plants share chlorophyll, a key to their

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Chimpanzee-Bonobo Split

Around 1.5 million years ago, the ancestors of today’s bonobos and chimpanzees became isolated from one another, likely due to the formation of the Congo River. This geographical barrier separated populations of the genus Pan, which ultimately evolved into two distinct species: bonobos (Pan paniscus) south of the Congo River, and chimpanzees (Pan troglodytes) to

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Divje Babe Flute

Location: Divje Babe Cave, Slovenia Attribution: Possibly Neanderthal Material: Bear femur Discovered in the 1990s, this flute-like artifact features holes resembling those used for producing music. If confirmed as a flute, it would suggest that Neanderthals possessed musical traditions. However, some scholars argue these holes might be from animal activity. The Divje Babe flute continues

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Peter Zapffe (1899-1990, age 90)

Norwegian philosopher, Zapffe is known for extending Schopenhauer’s dark existentialism and framing human consciousness as an evolutionary misstep. He believed that human self-awareness leads to suffering because it far exceeds what is necessary for survival. In my writing, I caution against limiting ourselves to Zapffe’s fatalistic views. His four strategies for coping with this burden—isolation,

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Arthur Schopenhauer (1788-1860, age 72)

Schopenhauer, deeply influenced by Kant’s work, extended the distinction between Phenomena and Noumena by introducing his concept of the will. While Kant viewed the noumenal world as unknowable, Schopenhauer identified it as a blind will that drives all living beings. This will, much like Aristotle’s life force (entelechy), propels existence. The key difference in Schopenhauer’s

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Søren Aabye Kierkegaard (1813-1855, age 42)

Kierkegaard explored themes of anxiety, freedom, and the burden of choice. Living before psychology was a formal discipline, he wrote about angst, an existential anxiety arising from human freedom. His concept of the leap of faith emphasized making decisions authentically, even when faced with uncertainty. For Kierkegaard, anxiety wasn’t to be feared but embraced, as

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Neanderthal Rope!

Fiber Technology Pushes Back Cognitive Milestones: Fiber technology is the ability to process and manipulate plant fibers into things like string, ropes, clothing, and nets. It represents a milestone in cognitive abilities and cultural progress, requiring not just dexterity but also a deep understanding of material properties. The brains needed for this technology had to

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Earliest Known Toothpicks

Homo habilis, one of the earliest known human ancestors, emerged around 2.3 million years ago with a brain size significantly larger than modern chimpanzees. By around 1.8 million years ago, they became the first species known to use toothpicks for dental hygiene, alongside their advanced tool use for specific tasks like skinning animals and cutting

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Laughter Emerges

Laughter is closely related to emotional intelligence: The roots of laughter can be traced back to our common ancestors with other great apes, living around 10 to 15 million years ago. These early primates likely exhibited rudimentary forms of laughter as a social signal during play, much like modern-day chimpanzees, bonobos, and gorillas. This “animal

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Cheerful children's laughter

Human Laughter Emerges

As hominins began to diverge from their great ape relatives around 2 to 4 million years ago, the simple vocalizations of their ancestors evolved into more sophisticated forms of communication. Among these was “human-like laughter,” characterized by its rhythmic structure, emotional depth, and social significance. Unlike the breathy panting of earlier primates, human laughter developed

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Sunghir Burial Site

The Sungir Burial Site, dating back to around 30,000 BCE, offers a remarkable glimpse into the lives of Upper Paleolithic humans in what is now Russia. The people of Sungir were part of a sophisticated hunter-gatherer society, living in the cold climate of the Russian Plain. They were highly skilled artisans and craftsmen, evidenced by

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