Explore wildlife discoveries, animal behavior, natural history and clear science explainers.
Colombia is one of the most biodiverse countries on Earth, home to nearly 10% of all species worldwide. This makes it a true megadiverse nation. Yet, despite its richness, more than 1,200 species endemic to Colombia are ···
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Argentina is extraordinarily biodiverse—from the Andes and Patagonia to the Pampas and Atlantic coast. Yet human activities (deforestation, overhunting, pollution, habitat fragmentation) have pushed many species into vu···
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Bolivia is one of the most biodiverse countries in the world. Classified as a “megadiverse nation,” it ranks seventh globally in terms of biological richness. However, like in many other parts of the planet, human acti···
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Overfishing, habitat degradation, climate change, and pollution are driving many marine and freshwater fishes toward extinction. Unlike land animals, aquatic populations are hard to count precisely, but trends in catch p···
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Birds of prey—also called raptors—are carnivorous birds equipped with powerful talons and a hooked beak. They include diurnal raptors (eagles, hawks, buzzards, falcons, kites, vultures, the osprey) and nocturnal raptor···
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Across the animal kingdom, many mammals, birds, reptiles, amphibians, fishes, arachnids—and even some insects themselves—depend on insects as their main or an important food source. This article explains what insectivo···
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From the Atacama Desert to the Andes and the Patagonian ice fields—plus a long Pacific coastline fed by the Humboldt Current—Chile’s mosaics of habitats support exceptional native biodiversity. Below are representativ···
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In many species, oversized eyes are a survival upgrade—supercharging night vision, widening fields of view, or pulling detail from dim, deep-sea light. Here’s a clean, copy-ready roundup of 25+ big-eyed animals, with s···
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Colombia’s extraordinary variety of habitats—Andean cordilleras, Amazonian rainforest, cloud forests, Llanos savannas, and two coasts—has produced a wealth of local wildlife. Below is a field-ready guide to 23 endemic···
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Straddling the Central American isthmus, Panama blends tropical climate, coast-to-coast shorelines, lowland rainforests, cloud forests and mangroves—conditions that foster exceptional biodiversity. Unfortunately, habita···
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Across the animal kingdom, body plans vary wildly: some lineages rely on internal skeletons made of bone or cartilage, others on external skeletons, and many have evolved hard coverings for defense, support, and movement···
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To talk about Madagascar is to talk about endemism. This large island off southeastern Africa split from the mainland more than 100 million years ago, and its plants and animals evolved in isolation—creating about 5% of···
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Many animals carry horn- or horn-like structures on the head. Some are weapons for defense or intraspecific combat, others help with display or even heat regulation. Shapes range from slim needles to sweeping scimitars o···
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Stretching from sub-Arctic Hokkaidō to the subtropical Nansei (Ryukyu) Islands, Japan’s four main islands and 6,000+ smaller ones create a mosaic of climates and habitats—and an astonishing variety of wildlife. This g···
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Australia’s isolation and sweeping climate zones have produced a world-class roster of birds—from giant, flightless sprinters to dazzling rainforest “songbirds.” Below is a web-ready guide to 20+ standout species wit···
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Guatemala packs cloud forests, tropical lowlands, mangroves, and high mountains into a small map—an incredible diversity now pressured by rapid habitat loss and illegal hunting. The IUCN Red List ranks extinction risk f···
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Supercharged by the Humboldt (Peru) Current and powerful upwelling, Peru’s Pacific shoreline is one of South America’s richest marine corridors. Nutrient-dense waters feed vast schools of fish, which in turn attract se···
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Crocodiles (family Crocodylidae) are among the longest-surviving reptile lineages on Earth, with origins tracing back to the Eocene over 50 million years ago. In scientific usage, “crocodile” refers specifically to Cro···
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Bird migration is one of nature’s most spectacular, cyclical phenomena. Not all birds migrate—resident species can remain if local climate, food, and breeding needs are met year-round. For species that “change seasons···
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Monotremes (order Monotremata) are the most unusual—and oldest living—branch of mammals. They blend traits typically seen in reptiles and birds with core mammalian features: they lay eggs, produce milk, and are covered···
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Fishes are the most abundant vertebrates on Earth. Even though we don’t encounter or recognize species as easily as we do birds or mammals, fishes occupy virtually every aquatic habitat—from polar seas and tropical ree···
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Spanning both Europe and Asia and covering about 17.09 million km², Russia contains an extraordinary range of ecosystems—from Arctic tundra and taiga to high mountains, vast rivers, and the world’s deepest lake. That ···
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What animals are cold-blooded? Explore 35 examples of reptiles, amphibians, fish and invertebrates, plus how ectotherms regulate body heat.
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Most animals—including us—run on roughly 24-hour biological rhythms (circadian rhythms) that schedule when we’re alert, when we feed, and when we sleep. Based on when activity peaks over a day, species are commonly gr···
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