Animals that have existed since the time of dinosaurs have ancient lineages, include –
Crocodiles and Alligators are reptiles have been around for about 200 million years and have changed very little in that time.

Horseshoe Crabs creatures have been around for over 400 million years, predating the dinosaurs.
Sharks have existed for over 400 million years, with some of their ancestors predating the dinosaurs.

Coelacanths ancient fish were thought to be extinct until a living specimen was found in 1938. They have been around for over 400 million years.

Ginkgo biloba is the only surviving species of an ancient group of trees that date back around 270 million years. These species have shown remarkable adaptability and continuity through Earth’s history.

Islands often harbor animal species that are unique to those islands and may have little or no fear of humans due to their isolated environments. It contribute to the presence of animals on islands without humans.

Islands where only animals found around the world are –

Galápagos Islands, Ecuador famous for their unique wildlife, Galápagos are home to species like the giant tortoise, marine iguanas, and the blue-footed booby. The animals here evolved in isolation and are not afraid of humans.

Komodo Island, Indonesia is home to the Komodo dragon, the largest lizard in the world. The Komodo dragon is a fearsome predator, known for its powerful bite and venom.

Madagascar is the fourth largest island in the world, Madagascar is home to many species found nowhere else, including lemurs, fossas, and a wide variety of unique reptiles and amphibians.

Tasmania, Australia has a diverse range of wildlife, including the Tasmanian devil, wombats, and various species of kangaroos and wallabies. The island also has a number of bird species found only in Tasmania.

Borneo Indonesia, Malaysia, and Brunei, Borneo is one of the most biodiverse places on Earth. The island is home to orangutans, pygmy elephants, and the clouded leopard, among many other species.

Sri Lanka island nation has a rich variety of wildlife, including elephants, leopards, and sloth bears. The island is also known for its large populations of migratory birds.

Isle of Skye, Scotland has a variety of wildlife including red deer, otters, and a variety of bird species like golden eagles.

Sumatra, Indonesia is home to critically endangered species like the Sumatran tiger, rhinoceros, and orangutan. The island’s rainforests are some of the most biodiverse in the world.

These islands often have protected areas or national parks that help preserve their unique ecosystems and the wildlife that inhabits them.