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whales and dolphins

An embryo developing in the uterus at 8 weeks, 9 weeks and 10 weeks

Health

Miscarriages may be more likely to occur with slow developing embryos

Using vaginal ultrasound scans to build detailed 3D images that show an embryo's growth could predict which pregnancies are most likely to end in miscarriage

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Killer whales off San Juan Islands

Life

Orcas in the North Pacific may be dying out due to inbreeding

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Health

Maternal mortality rate in the US rose drastically in 2021

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A transmission electron micrograph of HIV virus particles (pink) replicating from the plasma membrane of an infected immune cell

Health

Umbilical blood stem cell transplant puts woman in HIV remission

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Environment

US approves controversial Willow oil drilling project in Alaska

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Orca seen foster parenting a pilot whale calf for first time

Life

Orca seen foster parenting a pilot whale calf for first time

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Changes to surrogacy laws must consider future reproductive technology

Health

Changes to surrogacy laws must consider future reproductive technology

Comment

A reconstruction of the Huc enzyme

Chemistry

Soil bacteria enzyme generates electricity from hydrogen in the air

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LOS ANGELES, CA - NOVEMBER 03: Nicole Fahey, of Altadena, six months pregnant, receives a Pfizer vaccination booster shot from RN Veronique (cq) Vida (cq) at Eugene A. Obregon Park on Wednesday, Nov. 3, 2021 in Los Angeles, CA. The County of Los Angeles, including Supervisor Hilda L. Solis, Dr. Barbara Ferrer, Director of Public Health, and Norma Edith Garc?a-Gonz?lez, Director of Parks and Recreation, will host a media event kicking off COVID-19 vaccinations for children ages 5-11 in Los Angeles County. The COVID-19 vaccine manufactured by Pfizer and BioNTech is proposed to be given in two 10-microgram (mcg) doses administered 21 days apart. (Gary Coronado / Los Angeles Times via Getty Images)

Health

Covid-19 vaccines during pregnancy protect newborns from infection

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HEATA press image

Technology

Heating water with computer servers could save UK homes £150 a year

Data centres often waste the heat generated by servers, but UK firm Heata intends to bring servers into people's homes where the waste energy can be used to heat up people's hot water for showers

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Life

Weird vocal fry trick helps orcas and dolphins hunt prey in the deep

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Video

Ancient depictions of Norse sea monsters may be feeding whales

Video

Society

Should you have children? The true costs and benefits of parenthood

Features

Life

Why are so many whales getting stranded on US beaches?

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