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Showing posts with the label ocean conservation

🦈 Sharks’ Multisensory Brilliance: Precision Hunting Beneath the Waves

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πŸ’‘ Did you know sharks, such as the great white, have adaptations that protect their eyes during predation, a key defensive mechanism? Many sharks have a nictitating membrane, a protective third eyelid that shields the eye while still allowing limited vision. Species like great whites and makos lack this membrane and instead roll their eyes back to protect them. Although vision is briefly obstructed during a strike, sharks rely on a sophisticated combination of senses to hunt effectively. πŸ‘€ Vision : When unobstructed, sharks have keen eyesight, spotting and tracking prey even in low light. Some species perceive limited color ranges and strong contrasts, aiding hunting and navigation, especially in clear waters. πŸ“‘ Long‑range Detection: Hearing & Smell 🎧 Hearing: Sharks detect low‑frequency, irregular sounds, such as those made by struggling prey, and these sounds travel efficiently through water. πŸ‘ƒ Olfaction: Their sense of smell is highly developed and independent of breathi...

Ghost Nets: Silent Killers Threatening Our Oceans and Reefs

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🌊 Beneath the calm surface of the ocean, a hidden danger lurks: ghost nets. These abandoned fishing nets keep trapping turtles, whales, dolphins, seals, seabirds, sharks, rays, and countless species of fish and invertebrates long after they are lost. Modern fishing nets, made from tough synthetic materials, can endure for decades, wounding marine life, tearing fragile reefs, and breaking down into microplastics that enter our food chain. ⚠️ The scale of the problem is staggering. Every year, massive amounts of fishing gear are lost at sea, with global costs in the billions from damaged reefs, depleted catches, and lost tourism. Left to drift, a single ghost net can snare countless animals and strip coral reefs bare as it drags across their fragile branches. ✨ But change is possible. Around the world, divers, scientists, and local communities are working to recover ghost nets and recycle the nylon into sustainable products. New technologies, from biodegradable nets to satellite-tracked...