On safari in Africa, it’s the ‘Big 5’ signature species. But on the other side of the world, in another extraordinary landscape, the can’t miss, iconic wildlife is summed up on the ‘Bis 15’ list. Many are found nowhere else on earth other than in the Galapagos islands.

Their unparalleled biodiversity famously inspired Darwin’s theory of evolution. No wonder these remote Ecuadorian islands are a UNESCO World Heritage Site, a protected marine preserve, and the ultimate travel aspiration for nature lovers.

Here’s the Galapagos "Big 15" check list of species, renowned for their unique characteristics, evolutionary significance, and endemic nature.

The Galapagos ‘Big 15’:

Galapagos Giant Tortoise - Known for their long lifespan and massive size, they are found only in the Galapagos archipelago.
Marine Iguana - The world’s only sea-going iguana is also only encountered in these islands, often seen basking on rocks.
Land Iguana - Found on several islands, feeding on cacti.
Santa Fe Land Iguana - An endemic species limited to Santa Fe Island.
Galapagos Penguin - The only penguin found north of the equator.
Flightless Cormorant - Evolved to lose flight but developed exceptional swimming ability.
Waved Albatross - Found mainly on Española Island, known for their elaborate courtship dances.
Blue-footed Booby - Famous for their bright blue feet and amusing mating dance.
Nazca Booby - The largest booby in the archipelago, with striking black-and-white plumage.
Red-footed Booby - The only booby with red feet, known for perching in trees.
Frigatebird - Males have a red throat pouch they inflate to attract females.
Galapagos Hawk - The top predator on the islands, known for preying on reptiles and small birds.
American Flamingo - Seen wading in brackish lagoons, with stunning pink feathers.
Galapagos Sea Lion - Playful and curious, often seen on beaches and swimming with snorkelers.
Galapagos Fur Seal - Smaller and more elusive than the sea lion, they prefer rocky shores.

Not only can you see these marvels of nature in their native environment, but without natural predators, much of Galapagos wildlife is fearless, allowing responsible visitors close encounters we normally don’t associate with seeing animals in the wild. They un-self-consciously go about their daily business in a way that allows visitors to observe their natural behaviors, much the same way Darwin did, allowing him was able to identify how some species uniquely adapted to their specific environments (for example, the different beak shapes of Darwin’s finches.)

Traveling to the Galapagos is more than just a vacation—it's an immersive journey into the heart of one of the world’s most unique ecosystems, from dramatic lava fields and black-sand beaches created by ancient volcanic activity, to lush highlands, all surrounded by one of the world’s richest marine environments.

Whether you’re an animal lover, a nature enthusiast, or simply looking for an unforgettable adventure, the Galapagos offers a profound and enriching experience.