mandopony: ultrafacts: Alex (1976 – September 6, 2007) had a vocabulary of over 100 words, but was exceptional in that he appeared to have understanding of what he said. For example, when Alex was shown an object and was asked about its shape, color,
mandopony: ultrafacts: Alex (1976 – September 6, 2007) had a vocabulary of over 100 words, but was exceptional in that he appeared to have understanding of what he said. For example, when Alex was shown an object and was asked about its shape, color,