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Why Do People Have Periods When Most Mammals Don’t?

14/06/2021 by admin

Categories Science Tags Aunt Flo, choosy uterus, corpus luteum, cramps, decidualization, education, egg cell, endometrium, fertility, fertilized, follicle, Green, Hank, hemochorial placentation, Human, infertility, Learn, mammal, menotoxin, Menstruation, menstruator, miscarriage, ovaries..., Ovulation, Period, placenta, pregnancy, Pregnant, reproductive, reproductive system, Science, SciShow, Uterine lining, Uterus

Is the Y Chromosome Disappearing?

17/07/2017 by admin

Categories Science Tags aranda, biology, chromosome, education, Female, Gender, Green, Hank, human anatomy, Male, mammal, michael aranda, Science, SciShow, x chromosom..., y chromosome

The 10 Oldest Fossils, and What They Say About Evolution

03/07/2017 by admin

Categories Science Tags Ancient, Australia, education, Fish, fossil, Green, Hank, i..., mammal, palentology, pikaia, platypus, Rock, Science, SciShow, stromatolites, vertebrate, zircon

The 6 Craziest Extinctions Ever

22/04/2015 by admin

Categories Science Tags Animals, AsapSCIENCE, Asteroid, carbon dioxide, Cartoon..., Climate Change, CO2, Comet, cretaceous, Death, Die, Dinosaur, Dinosaurs, earth, Earth history, evolution, Extinct, Extinction, Extinction Rate, Fish, Food Chain, glacier, Global Warming, greenhouse gas, hands, History, ice age, Insects, jurassic, life, mammal, Mass Extinction, Mexico, Millions of years..., Ocean, Ocean level, Ordovician, Permian, Plants, Science, Species, Stop motion, Temperature, Tetrapod, triassic, volcano, whiteboard

The Evolution of Life on Earth

28/11/2012 by admin

Categories Science Tags 24, 24 hours, Animal, animation, Asap, AsapSCIENCE, billion, Cartoon..., Cell, Cells, Clay, Creation, Day, Dinosaur, draw, earth, Eukaryote, evolution, Evolution Of, Evolution of Life, forest, hands, History, History of Life, Hours, How ..., Human Evolution, Learn, life, Life in 24 hours, mammal, Meaning of Life, Organisms, paper, Plant, Play doh, Science, Stop motion, Theory, Time, timeline, Tree, what is life, whiteboard, Why, Years

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