Hominids, the Great Apes, narrows to gorillas, orangutans, chimpanzees, and humans, along with their direct ancestors. Traits: large size, no tail, and more complex brains and behaviors.
Laughter is older than language, older than humans, and probably older than the human-chimp split. Its first purpose was not comedy, but connection. In the breathy play sounds of ancient apes, we can hear the early roots of emotional intelligence, friendship, and social trust.
All mammals, birds, and reptiles communicate on a spectrum shaped by evolution. Great ape communication goes back about 15 million years.
Animal Vocabulary: Thousands of Words (The Great Apes) Read More »
Likely between 25 and 30 million years ago, the evolution of the apes brought about further refinement of the opposable thumb. This period saw the divergence of the lineages that would lead to modern “lesser” apes like gibbons as well as later “great” apes, including orangutans, gorillas, and chimpanzees. The ape thumb evolved to become
Arboreal to Terrestrial: Beginning approximately 9 million years ago, our ancestors began an evolutionary change from forests to woodlands to savannahs. This gradual transition from primarily arboreal (tree-dwelling) lifestyles to increasingly terrestrial (ground-based) behaviors was very gradual with traits specific for walking around carrying things gradually accumulating. This evolutionary journey spanned roughly 7 million years,
Transition from Trees to Savannah Begins Read More »
Long before doctors, early great apes were using simple treatments to feel better. This was not science, but it was the beginning of healing.
Great Apes: Medicine Emerges Read More »
Kenyapithecus represents a lineage in which richer emotional intelligence took shape: reading others, calming reactions, forming bonds, and adjusting behavior in a more socially aware way.
Genus Kenyapithecus: EI Emerges Read More »
The Great Apes LCA is one of our deep evolutionary crossroads. From this shared root came the living great apes, including us.
Emergence of the Great Apes (Great Apes LCA) Read More »
CHLCA candidate: This genus includes Ardipithecus ramidus (like “Ardi”) and possibly earlier species like Ardipithecus kadabba. Ardipithecus shows a mix of bipedal traits and adaptations for climbing, reflecting a transitional form in human evolution.
Genus: Ardipithecus Read More »
CHLCA candidate: Known from Kenya, Orrorin tugenensis is another early form, with femoral evidence suggesting bipedality, indicating it was likely an early walker.
In the verdant landscapes of Laetoli, Tanzania, beneath a layer of volcanic ash from a nearby eruption, a remarkable story is preserved. Dating back 3.66 million years, a series of footprints capture a fleeting moment in time when early hominins walked across the wet ash. These footprints, attributed to Australopithecus afarensis, represent one of the
Echoes of Early Steps: The Laetoli Footprints Read More »
Great Apes LCA candidate: Proconsul, an inhabitant of the Miocene forests in East Africa, stands as a landmark in the evolutionary journey toward self-awareness.
Genus Proconsul (Self-Awareness Settles) Read More »
116,000 Generations Ago This genus is more directly ancestral to humans and includes several species, such as Australopithecus afarensis (famously represented by “Lucy”), Australopithecus africanus, and others. Australopithecines show a greater commitment to bipedalism and have features more closely resembling modern humans, although they still retained some adaptations for climbing. This genus is known for
Genus: Australopithecus Read More »
Last Gorilla-Chimp-Human ancestor: The last common ancestor of gorillas, chimpanzees, and humans likely lived about 8 to 10 million years ago.
Gorillas Branch Off: Genus Nakalipithecus Read More »
260,000 Generations Ago CHLCA candidate: Often considered one of the earliest potential hominins, Sahelanthropus tchadensis, best known from the “Toumai” skull found in Chad, exhibits features that suggest bipedalism but remains debated due to limited fossil evidence. With two human anatomical traits, small canine teeth, and a spinal cord hole in the cranium further forward
Genus: Sahelanthropus (Walking Upright) Read More »
The earliest known stone tools date back to at least 3.3 million years ago. They are identified by their purposeful flaking patterns, sharp edges, and location with other more identifiable artifacts or fossils. They are then verified with microscopic analysis confirming repetitive use.
Homo habilis marks an early Philosophy of Mind turning point: intelligence was no longer just reaction, but planning. With toolmaking, foresight, and environmental manipulation, the mind began reaching beyond the present moment into imagined futures.
Homo habilis: Our Intelligence Settles. Read More »
Humans did not evolve from chimpanzees. Humans, chimpanzees, and bonobos all descend from an earlier African ape whose lineage split around 7.5 million years ago.
Chimpanzees Branch Off (CHLCA) Read More »
