thumb|A Tufted puffin in Seattle, Washington The Fraterculini are thought to have originated in the Pacific, primarily due to their greater diversity there; there exists only one extant species in the Atlantic, compared to two in the Pacific. This species has shown some significant signs of animal intelligence. In January 2020, some researchers reported that, Atlantic puffins were seen using sticks as a tool to scratch themselves. The Fraterculini fossil record in the Pacific extends at least as far back as the middle Miocene, with three fossil species of Cerorhinca, and material tentatively referred to that genus, in the middle Miocene to late Pliocene of southern California and northern Mexico. Although there are no records from the Miocene in the Atlantic, a re-examination of the North Carolina material indicated that the diversity of puffins in the early Pliocene was as great in the Atlantic as it is in the Pacific today. This diversity was achieved through influxes of puffins from the Pacific; the later loss of species was due to major oceanographic changes in the late Pliocene due to closure of the Panamanian Seaway and the onset of severe glacial cycles in the North Atlantic.
thumb|A Tufted puffin in Seattle, Wash,ington The Fraterculini are thought to have originated in the Pacific primarily due to their greater diversity there; there exists only one extant species in the Atlantic, compared to two in the Pacific. This species has shown some significant signs of animal intelligence. In January 2020, some researchers reported that Atlantic puffins were seen using sticks as a tool to scratch themselves. The Fraterculini fossil record in the Pacific extends at least as far back, as the middle Miocene with three fossil species of Cerorhinca, and material tentatively referred to that genus, in the middle Miocene to late Pliocene of southern California and northern Mexico. Although there are no records from the Miocene in the Atlantic, a re-examination of the North Carolina material indicated that the diversity of puffins in the early Pliocene was as great in the Atlantic as it is in the Pacific today This diversity was achieved through influxes of puffins from the Pacific; the later loss of species was due to major oceanographic changes in the late Pliocene due to closure of the Panamanian Seaway and the onset of severe glacial cycles in the North Atlantic