Top stories Modern human evolution the problem with threeparent embryos and what

first_img Country * Afghanistan Aland Islands Albania Algeria Andorra Angola Anguilla Antarctica Antigua and Barbuda Argentina Armenia Aruba Australia Austria Azerbaijan Bahamas Bahrain Bangladesh Barbados Belarus Belgium Belize Benin Bermuda Bhutan Bolivia, Plurinational State of Bonaire, Sint Eustatius and Saba Bosnia and Herzegovina Botswana Bouvet Island Brazil British Indian Ocean Territory Brunei Darussalam Bulgaria Burkina Faso Burundi Cambodia Cameroon Canada Cape Verde Cayman Islands Central African Republic Chad Chile China Christmas Island Cocos (Keeling) Islands Colombia Comoros Congo Congo, the Democratic Republic of the Cook Islands Costa Rica Cote d’Ivoire Croatia Cuba Curaçao Cyprus Czech Republic Denmark Djibouti Dominica Dominican Republic Ecuador Egypt El Salvador Equatorial Guinea Eritrea Estonia Ethiopia Falkland Islands (Malvinas) Faroe Islands Fiji Finland France French Guiana French Polynesia French Southern Territories Gabon Gambia Georgia Germany Ghana Gibraltar Greece Greenland Grenada Guadeloupe Guatemala Guernsey Guinea Guinea-Bissau Guyana Haiti Heard Island and McDonald Islands Holy See (Vatican City State) Honduras Hungary Iceland India Indonesia Iran, Islamic Republic of Iraq Ireland Isle of Man Israel Italy Jamaica Japan Jersey Jordan Kazakhstan Kenya Kiribati Korea, Democratic People’s Republic of Korea, Republic of Kuwait Kyrgyzstan Lao People’s Democratic Republic Latvia Lebanon Lesotho Liberia Libyan Arab Jamahiriya Liechtenstein Lithuania Luxembourg Macao Macedonia, the former Yugoslav Republic of Madagascar Malawi Malaysia Maldives Mali Malta Martinique Mauritania Mauritius Mayotte Mexico Moldova, Republic of Monaco Mongolia Montenegro Montserrat Morocco Mozambique Myanmar Namibia Nauru Nepal Netherlands New Caledonia New Zealand Nicaragua Niger Nigeria Niue Norfolk Island Norway Oman Pakistan Palestine Panama Papua New Guinea Paraguay Peru Philippines Pitcairn Poland Portugal Qatar Reunion Romania Russian Federation Rwanda Saint Barthélemy Saint Helena, Ascension and Tristan da Cunha Saint Kitts and Nevis Saint Lucia Saint Martin (French part) Saint Pierre and Miquelon Saint Vincent and the Grenadines Samoa San Marino Sao Tome and Principe Saudi Arabia Senegal Serbia Seychelles Sierra Leone Singapore Sint Maarten (Dutch part) Slovakia Slovenia Solomon Islands Somalia South Africa South Georgia and the South Sandwich Islands South Sudan Spain Sri Lanka Sudan Suriname Svalbard and Jan Mayen Swaziland Sweden Switzerland Syrian Arab Republic Taiwan Tajikistan Tanzania, United Republic of Thailand Timor-Leste Togo Tokelau Tonga Trinidad and Tobago Tunisia Turkey Turkmenistan Turks and Caicos Islands Tuvalu Uganda Ukraine United Arab Emirates United Kingdom United States Uruguay Uzbekistan Vanuatu Venezuela, Bolivarian Republic of Vietnam Virgin Islands, British Wallis and Futuna Western Sahara Yemen Zambia Zimbabwe Humans are still evolving—and we can watch it happenMany people think evolution requires thousands or millions of years, but biologists know it can happen fast. Now, researchers can actually track the population-level genetic shifts that mark evolution in action—even in humans. Two new studies show how our genomes have changed over centuries or decades, charting how since Roman times the British have evolved to be taller and fairer and how just in the last generation the effect of a gene that favors cigarette smoking has dwindled in some groups.Your call and text records are far more revealing than you think Sign up for our daily newsletter Get more great content like this delivered right to you! Country Emailcenter_img Metadata. It’s an obscure data science term that was unknown to most people until 2013, when it came out that the U.S. National Security Agency is harvesting vast amounts of them from telephone calls. Government officials have downplayed the sensitivity of such data, but a crowdsourced study of phone metadata now finds that highly revealing information can be gleaned from a simple list of who called whom.A new way to make powerful antibioticsResistance to antibiotics is growing, and yet drug companies have been dropping antibiotic research programs because the drugs are difficult and expensive to make. Now, help is on the way. Researchers report this week that they’ve found a way to churn out new members of one of the most widely used classes of antibiotics. The work could lead to new weapons against antibiotic-resistant infections and possibly save millions of lives.Yes, Zika will soon spread in the United States. But it won’t be a disasterIf history repeats itself, the U.S. media will make a whoop dee doo out of the first confirmed case of Zika virus transmission that takes place in the United States from a mosquito to a person. It hasn’t happened yet, but scientists believe it’s very likely to occur in the next few weeks. Given the attention that each imported case of Zika has triggered so far, expect the U.S. media to go full-throttle. But researchers who have studied Zika and the mosquitoes that transmit it say that the country is currently in the calm before the calm.Why ‘three-parent embryo’ procedure could failIt’s a stunning and controversial procedure: Give a baby three genetic “parents” by combining sperm from dad, a cell nucleus from mom, and the egg of a female donor. The approach is supposed to eliminate the risk of inheriting sometimes deadly mutations in the DNA of the mitochondria, the cell’s energy-producing structures. But a new study corroborates what some exploring this so-called mitochondrial replacement therapy have long suspected: that the undesirable DNA still manages to sneak into the donor egg during the procedure.Once again, U.S. expert panel says genetically engineered crops are safe to eatAlmost 2 years ago, a group of scientists began hashing out a consensus on the risks and benefits of genetically engineered crops. Since the launch of their study, the public debate around the safety of genetically modified organisms and whether to label them has continued to rage. But behind the scenes, some things have changed. Agricultural markets are now bracing for an explosion of new plants designed using the precise gene-editing technology CRISPR, and regulators in both the United States and the European Union are struggling with how to assess their safety.Now that you’ve got the scoop on this week’s hottest Science news, come back Monday to test your smarts on our weekly quiz! 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