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The 158 newcomers, aged 8 to 13, have begun exploring the habitat<\/strong><\/a> they are destined to reshape over the coming years. Their release was perfectly timed with the arrival of the season\u2019s first winter rains.<\/p>\n \u201cThey are large enough to be released and can defend themselves against introduced animals such as rats and cats,\u201d says Fredy Villalba, director of the Gal\u00e1pagos National Park breeding centre on Santa Cruz Island, noting that the best specimens with the strongest lineage were selected specifically for Floreana.<\/p>\n Why did Floreana’s giant tortoises go extinct?<\/p>\n These released juvenile specimens, out of a total of 700 planned for Floreana, will be introduced gradually. According to Christian Sevilla, director of ecosystems of the Galapagos National Park, they carry between 40 per cent and 80 per cent of the genetic makeup of the Chelonoidis niger \u2013 a species that has been extinct<\/strong><\/a> for 150 years.<\/p>\n The lineage of these hybrids traces back to Wolf Volcano on Isabela Island, a discovery that still puzzles scientists today. By selecting adults with the strongest genetic makeup, says Sevilla, the breeding program aims to gradually bring the extinct Floreana species back to its former purity.<\/p>\n Two centuries ago, Floreana was home to approximately 20,000 giant tortoises. However, whaling<\/strong><\/a>, a devastating fire<\/strong><\/a>, and relentless human exploitation eventually led to their complete extinction on the island.<\/p>\n \u201cIn genetic terms, reintroducing a species to that island with a significant genetic component of the original species is vital,\u201d says biologist Washington Tapia.<\/p>\n Tapia, a researcher and director of Biodiversa-Consultores \u2013 a firm specialising in the Gal\u00e1pagos Islands \u2013 emphasised that this process is about more than just numbers; it is about restoring a lost lineage.<\/p>\n Floreana is a remote and vital ecological site<\/p>\n Floreana, an island spanning approximately 173 square kilometres, is a volcanic landmass and the southernmost point of the Gal\u00e1pagos archipelago. Situated in the middle of the Pacific Ocean \u2013 roughly 1,000 kilometres from the mainland coast \u2013 it remains a remote and vital ecological site.<\/p>\n The tortoises reintroduced to Floreana will share their territory with a diverse population of nearly 200 people alongside flamingos, iguanas<\/strong><\/a>, penguins, sea gulls and hawks. However, they must also contend with introduced plant species such as blackberry and guava, as well as animals like rats, cats, pigs and donkeys. These non-native species, introduced by human activity, represent potential threats to the island\u2019s newest inhabitants.<\/p>\n Floreana resident Ver\u00f3nica Mora describes the release of the tortoises as a dream come true. \u201cWe are seeing the reality of a project that began several years ago,\u201d she says, adding that the community feels immense pride in the return of the giant tortoises.<\/p>\n