Extinction
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Why sharks and rays keep our oceans alive | Louisa Graf | TEDxDeakin Uni Melbourne
TEDx Talks· 2025-12-22 17:17
You're standing by the ocean and you look down into the water, but it's murky, cloudy, and a little bit sour on the nose. The schools of fish you used to see darting past look sickly, weak, and they're riddled with parasites. The coral reefs are overgrown with algae, suffocating.The seaggrass meadows, one of the planet's most powerful carbon sinks, are stripped bare. And the ocean warms. It feels different on your skin, no longer refreshing.Would you want to swim in this ocean, eat fish from this ocean, or ...
X @Elon Musk
Elon Musk· 2025-12-02 18:28
Demographic Trends - White population has decreased significantly over the past 100 years [1] - White population percentage: 100 years ago roughly 35%, 50 years ago roughly 20%, 25 years ago 15%, today just 8% [1] Social Commentary - The report suggests a perceived need for White people to "take their countries back" [1] - The report expresses a sentiment against tolerance and empathy [1]
The call from the animals | Inaya Matta | TEDxTarneit Youth
TEDx Talks· 2025-10-17 15:45
Imagine waking up one morning and discovering that every single elephant, tiger, or even a colorful parrot in the world had disappeared. The forest would be sad, the savannah's empty, and the sky far less bright. No roar of a light, no flutter of wings, no sound of birds greeting the morning.It may sound like a sad story, but it's one that's already unfolding. Scientists estimate that about 1 million species are now at risk of extinction. And every day, more animals are pushed closer to disappearing forever ...
Can we make a real-life Jurassic Park? | Iona Hamlyn | TEDxFrancisHollandSchoolSloaneSquare
TEDx Talks· 2025-10-01 15:18
De-extinction Project & Biodiversity - Biodiversity is projected to decrease by 27% in vertebrates by 2050 [1] - Colossal Laboratories and Biosciences claims to have brought back an extinct species of wolf, the direwolf [2] - Colossal aims to resurrect extinct species by generating organisms resembling and genetically similar to them, focusing on core genes [8] - Colossal plans to reintroduce woolly mammoths by 2028, along with projects involving the thylacine and dodo bird [15] Direwolf Project Details - Colossal used gene editing and cloning from ancient samples (13,000-year-old tooth and 72,000-year-old skull) to recreate direwolf pups [4] - Colossal identified 20 differences in 14 genes between grey wolf and direwolf genomes, accounting for distinguishing characteristics [5] - Direwolves existed from approximately 4 million years ago to 10,000 years ago, growing up to 178 cm and weighing 59-68 kg [9][10] - CRISPR technology was used to edit the genes, with five genes changed solely for the white coat characteristic [11][13] Species Definition & Project Validity - The definition of species involves interbreeding, while Colossal uses the morphological species concept (if they look like the animal, they are the animal) [6][7] - Greywolves are genetically more similar to jackals and African wild dogs than to direwolves [10] - Colossal currently has no plans for breeding the direwolves, which impacts the ability to determine if they can produce fertile offspring [14]
Drones: The bridge between tradition and tech | Hamish Campbell | TEDxCharles Darwin University
TEDx Talks· 2025-08-25 16:37
Environmental Crisis & Indigenous Knowledge - The world is facing a sixth major extinction event, necessitating preservation of wilderness and biodiversity [1] - Indigenous people, comprising less than 5% of the global population, manage over 40% of the world's untamed landscapes, spanning millions of square kilometers [2][3] - Integrating cultural knowledge and ecological wisdom from indigenous communities with emerging technologies can help solve conservation crises [26] Challenges & Solutions for Technology Adoption - Commercial off-the-shelf drones have a short lifespan (approximately 3 weeks) in remote indigenous communities due to their complexity and vulnerability to harsh environments [8][9] - Compliance requirements and training needs pose barriers to drone adoption by indigenous communities [9][10] - Processing and managing the thousands of drone imagery requires high-performance computing, which is often unavailable in remote areas [11][12] - Charles Darwin University is addressing these challenges by redesigning drones (e g, the Bimmeran), providing indigenously focused training, and utilizing AI and satellite technology (e g, Starlink) for data processing [12][13][16] Drone Technology Application & Impact - Drones provide an affordable aerial view for strategizing, coordinating, and assessing environmental management actions [5] - Drones are used in agriculture, park management, and conservation, but adoption in indigenous communities is limited [6][7] - In Groot Island, drones are used to map marine plastic debris, enabling rangers to strategize removal efforts and improve marine environment, covering over a thousand kilometers of coastline with only 12 rangers [17][20][22] - The drone program helps Australia meet its global biodiversity targets and is expanding to address various land management issues with multiple indigenous groups [23]
X @Tesla Owners Silicon Valley
Tesla Owners Silicon Valley· 2025-08-22 00:29
Future Vision - The industry emphasizes the necessity of becoming a multi-planetary species to avoid potential extinction on Earth [1] - The industry suggests that humanity cannot afford to be passive and must actively pursue space exploration [1]
Building the Lunar Ark | Jekan Thanga | TEDxUofA
TEDx Talks· 2025-08-11 16:00
Biodiversity Crisis & Interdependence - The world's wildlife has been reduced by nearly 73% in the last 50 years, highlighting an emerging catastrophe [8] - Honeybees pollinate nearly 80% of the world's flowering plants and major crops, crucial for modern civilization, but their population is being decimated [4] - Plants and animals are intertwined with humans, bringing important bio-knowledge, critical for health and well-being, and companionship [3][4][7][24] Conservation Efforts & Solutions - Resuscitating the Judean date palm from 2,000-year-old seeds demonstrates the potential for mitigating catastrophes with resources and will [9][10][11] - The Svalbard Global Seed Vault safeguards seeds needed for humanity's food supply, but rising sea levels pose a threat [13][14] - Cryogenics allows freezing and storing individual cells of plants and animals for eternity, with states like California actively freezing endangered cells [15][16] Lunar Ark Concept - The lunar ark, a facility built in lunar lava tubes, could store 90% of Earth's biodiversity cryogenically [19] - Lunar lava tubes offer ready-made shelters against radiation, extreme temperatures, and micrometeorites [18] - The lunar ark would be powered by nuclear fission reactors and operated by robots, functioning like a robotic library [19][20] - Resuscitated species from the lunar ark could be grown to maturity in orbiting terrariums and eventually returned to Earth [22]
Why biodiversity should matter to everyone | Alen Amirkhanian | TEDxYerevanSalon
TEDx Talks· 2025-08-08 14:50
Biodiversity Overview - Biodiversity is on the fringes of modern society, mainstreaming it is essential for human survival, health, and ethical considerations [4] - The planet consists of living and non-living things, with non-living things being more abundant [7][8] - Life on Earth began approximately 4 billion years ago, evolving into diverse forms [9] - Living organisms are interdependent and connected to non-living elements [10][11] - Plants constitute 80% of the Earth's biomass, followed by bacteria and fungi [16] Species and Extinction - There are an estimated 8 to 10 million species on the planet, but less than 20% are known [17][18] - The planet is experiencing its sixth mass extinction, primarily caused by humans [19] - IUCN has assessed 170,000 species and identified 47,000 (approximately 6%) as threatened with extinction [20] - Extinction rates are increasing, with projections of 1,000 species per million per year by the end of the century [21] Causes of Biodiversity Loss - Habitat destruction and fragmentation, mainly due to food production and dietary choices, are major causes [22] - Invasive species introduced by humans disrupt ecosystems [23] - Chemical use, including pesticides and veterinary medicine, contributes to species decline [24] - Overexploitation, over hunting, over fishing, and poaching further threaten biodiversity [24][25] Conservation Efforts - Scientists are cataloging and identifying species, and IUCN has developed a system to assess extinction risk [26] - International agreements like CITES regulate trade in endangered species, and the Convention on Biological Diversity (CBD) promotes national biodiversity strategies [26] - The CBD aims to protect 30% of seas and lands [28] Regional Biodiversity - Armenia is located within two biodiversity hotspots, the Iran-Anatolian and Caucasus hotspots [29] - Armenia has 27,000 species of plants, animals, and fungi, with 640 being endemic [29]
Tiger conservation-it's significance for sustainability of life | Dr. P S Harsha | TEDxNPSITPL Youth
TEDx Talks· 2025-08-05 16:07
[Music] Hello everyone. The picture that you see of mine is dated a couple of years back when I was commissioner of police of Mangalore city wherein I was uh commanding police forces of more than uh 3,000 men and women. I used to take decisions which would affect land order of millions of people.Every decision that I take affected huge number of people and every act of mine was spoken in the streets. But wait, this is today's me. Far from all the huzzle buzzle away from the so-called happening things of cit ...
X @The Wall Street Journal
The Wall Street Journal· 2025-06-29 21:06
Research Finding - Megalodons were longer and leaner than scientists once thought [1] - That shape could have contributed to the giant shark's extinction [1]