Dinosaurs like the T. rex and Triceratops ruled the land millions of years ago, showcasing Earth's diverse past.
Woolly mammoths roamed icy tundras, their thick fur helping them survive harsh Ice Age climates.
The dodo, a flightless bird, thrived on islands until humans and predators led to its extinction.
Saber-toothed tigers had massive fangs and hunted large prey, dominating ecosystems long ago.
Megalodons, giant prehistoric sharks, once swam the oceans, ruling as apex predators for millions of years.
Giant ground sloths, weighing tons, lived in forests, browsing on leaves and fruits before vanishing.
Passenger pigeons, once numbering in billions, disappeared due to overhunting and habitat loss.