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 breadth of habitats supports remarkable wildlife. Below are 15 emblematic Russia...
When you see reptiles or amphibians basking motionless on warm rocks, they aren’t “being lazy”—they’re regulating body temperature. These are cold-blooded animals in everyday language; in biology we call them ectotherms: creatures that cannot keep a stable body temperature using metabolism alon...
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 grouped as diurnal (active by day) or nocturnal (active by night). Very few are hi...
Nature doesn’t insist on a single blueprint. Many animals thrive without a centralized brain, relying instead on simple nerve nets, ring-and-radial nerves, or chains of ganglia to sense, move, feed, and reproduce—especially in the sea. Here’s a clear, reader-friendly guide to 14 classic examples....
Coasts and nearshore waters are among Earth’s richest life zones. Beyond the familiar dolphins, gulls, and sea turtles, tidepools, beaches, rocky shores, estuaries, and near-coastal seas teem with fishes, birds, reptiles, and invertebrates. This field-guide style overview introduces the flagship gr...
Peru is among the world’s most biodiverse countries. More than 1,730 bird species have been recorded—second only to Colombia. Stretching from the Pacific coastal deserts across the Andes to the Amazon rainforest, Peru’s dramatic gradients in climate and terrain create a mosaic of habitats that su...
The Amazon Basin—spanning Brazil, Colombia, Peru and extending into Bolivia, Ecuador, Venezuela, Guyana, Suriname, and French Guiana—is one of Earth’s greatest biodiversity hotspots. Anchored by the mighty Amazon River, this region supports an astonishing web of life. Across studies, scientists e...
Frugivores are animals that obtain much (or most) of their nutrition from fruit. Some species are almost strict fruit eaters, while many are facultative frugivores that eat fruit seasonally or opportunistically within a broader herbivorous or omnivorous diet. Frugivores form mutualistic interactions...
Earth’s biodiversity is astonishing—scientists estimate around 8.7 million species. While some prehistoric reptiles may have had feather-like structures, today only birds truly have feathers. In this guide, you’ll meet 25 feathered animals (all birds), with easy-to-read traits, behaviors, and hab...
Did you know that there are over 62,000 known species of vertebrate animals on Earth today?This impressive number includes a vast variety of creatures, from the smallest fish to the largest mammals, all sharing one key feature: a backbone.Because they have skeletons that fossilize easily, vertebrate...
Nutrition is one of the vital life functions of living organisms. Different species can be classified according to their feeding strategies and habits, which they have developed through evolution. Understanding the diets of animals not only reveals how they live, but also helps us understand the rol...
Every year, the list of endangered animals in Paraguay continues to grow. Some species are well known, while others are lesser-known, but all wildlife plays a vital role in maintaining ecological balance and healthy ecosystems.In this article, we’ll explore 34 species in danger of extinction in Par...
Uruguay, located in southeastern South America, boasts a rich variety of ecosystems, including grasslands, forests, wetlands, hills, and coastal areas. These diverse landscapes support a wide range of native wildlife, playing a crucial role in the country’s natural heritage.In this article, you'...
Nicaragua, the largest country in Central America, is home to exceptional biodiversity. Its 68 terrestrial and aquatic ecosystems support over 14,000 species of invertebrates and around 1,800 species of vertebrates. However, habitat degradation, fragmentation, and loss have placed many of Nicaragua’...
Antarctica, the southernmost continent on Earth, spans approximately 14 million square kilometers. It is one of the coldest, most remote, and least inhabited places on the planet. Despite its harsh conditions, this frozen continent is home to a surprising number of unique and resilient animal specie...
Covering over 70% of the Earth's surface, the oceans play a critical role in shaping the planet's climate and sustaining life. Ocean currents regulate weather patterns, and marine ecosystems support an astonishing level of biodiversity. Even today, many marine species remain undiscovered or...
Costa Rica, located in Central America within the tropical zone, boasts an extraordinary level of biodiversity. Despite its small size, the country is home to approximately 6% of the world’s total species, making it one of the most biologically rich countries on the planet. However, increasing huma...
Argentina, the eighth-largest country in the world by land area, is home to a spectacular variety of landscapes and climates—from the Andes mountains to the Atlantic coast, tropical jungles to Patagonian plains. This geographic diversity results in 18 distinct ecoregions, each hosting unique biodiv...
The Canary Islands, a Spanish archipelago known for its rich biodiversity and unique ecosystems, is home to numerous endemic species. Unfortunately, several of these native animals are now at risk of extinction. According to Spain’s National Catalogue of Endangered Species (CNEA), 15 species are cu...
Despite its small territory, El Salvador boasts exceptional biodiversity due to its tropical location along the Pacific Ocean. However, around 75% of its land is used for agricultural and livestock activities. Combined with climate change and environmental degradation, this has led to a sharp declin...
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