‘Major Discovery’ Beneath Antarctic Seas: A Giant Icefish Breeding Colony

Scientists discovered a mammoth nesting ground with an estimated 60 million icefish nests in the Weddell Sea.

#animal-behavior, #antarctic-regions, #current-biology-journal, #fish-and-other-marine-life, #reproduction-biological, #seals-animals-and-sealing, #your-feed-animals, #your-feed-science

Women’s Periods May Be Late After Coronavirus Vaccination, Study Suggests

An analysis of thousands of menstrual records offers support for anecdotal reports of erratic cycles after shots.

#birth-control-and-family-planning, #coronavirus-2019-ncov, #menstruation, #obstetricsgynecology-journal, #oregon-health-and-science-university, #reproduction-biological, #united-states, #vaccination-and-immunization, #women-and-girls, #your-feed-science

A Popular Test Claims to Boost I.V.F. Success. The Science Is Unclear.

I.V.F. patients are faced with a growing list of costly “add-ons.” For one such test, some say more robust research is needed to support its effectiveness.

#clinical-trials, #in-vitro-fertilization, #infertility, #pregnancy-and-childbirth, #reproduction-biological, #research, #tests-medical

The Future of America’s Abortion Fight

How increased access to one medication could fundamentally change the debate over abortion across the country.

#abortion, #abortion-drugs, #food-and-drug-administration, #reproduction-biological

How Bat Moms Give Bat Pups Their Sense of Direction

Scientists were surprised to discover that at least one bat species carries its young to an unsupervised drop-off point night after night.

#animal-behavior, #animal-cognition, #bats, #current-biology-journal, #israel, #navigation, #reproduction-biological, #research, #your-feed-animals, #your-feed-science

Climate Change Driving Some Albatrosses to ‘Divorce,’ Study Finds

Warming oceans are sending the monogamous sea birds farther afield to find food, putting stress on their breeding and prompting some to ditch their partners.

#birds, #conservation-of-resources, #global-warming, #new-zealand, #reproduction-biological, #research

Why Was This Ancient Tusk 150 Miles From Land, 10,000 Feet Deep?

A discovery in the Pacific Ocean off California leads to “an ‘Indiana Jones’ mixed with ‘Jurassic Park’ moment.”

#fossils, #ice-age, #mammoths-animals, #monterey-bay-aquarium-research-institute, #oceans-and-seas, #pacific-ocean, #paleontology, #reproduction-biological, #research, #your-feed-animals, #your-feed-science

Endangered California Condors Can Reproduce Asexually, Study Finds

The rare discovery came about as a result of efforts to preserve the species.

#condors, #endangered-and-extinct-species, #genetics-and-heredity, #journal-of-heredity, #parthenogenesis, #reproduction-biological, #san-diego-zoo, #western-states-us

Meet the Spotted Skunks. They’ve Been Keeping a Secret From Us.

New research using hundreds of DNA samples showed that there are seven species of these hand-standing, stink-spraying mammals.

#dna-deoxyribonucleic-acid, #mexico, #molecular-phylogenetics-and-evolution-journal, #north-america, #reproduction-biological, #research, #skunks, #your-feed-animals, #your-feed-science

Female Hummingbirds Avoid Harassment by Looking Like Males

Among white-necked Jacobin hummingbirds, those with plumage that resembles colors found on males get harassed less.

#animal-behavior, #current-biology-journal, #hummingbirds, #reproduction-biological, #research, #your-feed-animals, #your-feed-science

When Sea Snakes Attack, Scientists Blame Sex Drive

Sea snakes aren’t angry when they aggressively swim at divers, scientists say. They’re just confused and looking to mate.

#animal-behavior, #animal-cognition, #fish-and-other-marine-life, #reproduction-biological, #scientific-reports-journal, #snakes, #your-feed-animals, #your-feed-science

The Sperm-Count ‘Crisis’ Doesn’t Add Up

Reports of a decline in male fertility rely on flawed assumptions, a new study contends.

#human-fertility-journal, #infertility, #men-and-boys, #reproduction-biological, #research, #sperm, #swan-shanna-h, #testosterone, #your-feed-health, #your-feed-science

The Catholic Church’s Abortion Fight and What’s Behind It

It’s time to take a look at the role religion plays in American law and jurisprudence.

#abortion, #biden-joseph-r-jr, #john-paul-ii, #mississippi, #pelosi-nancy, #reproduction-biological, #roman-catholic-church, #united-states-conference-of-catholic-bishops

State Dept. Ends Citizenship Policy in Win for Same-Sex Families

The previous policy, which predated the Trump administration, required a child born abroad to have a biological connection to the American parent.

#americans-abroad, #artificial-insemination, #citizenship-and-naturalization, #discrimination, #immigration-and-emigration, #reproduction-biological, #same-sex-marriage-civil-unions-and-domestic-partnerships, #state-department, #united-states

At Mating Time, These Ants Carry Their Young Queen to a Neighbor’s Nest

The royal matchmaking service may help these insects avoid inbreeding.

#ants, #communications-biology-journal, #france, #genetics-and-heredity, #reproduction-biological, #research, #your-feed-animals, #your-feed-science

Female and Childfree, In Pictures

A photographer in Berlin is capturing the lives of the consciously child-free.

#reproduction-biological, #women-and-girls

Why I Gave My Mosaic Embryo a Chance

“It was like rolling the dice, except for someone you’ve never met.”

#disabilities, #embryos-human, #genetics-and-heredity, #in-vitro-fertilization, #infertility, #miscarriages, #pregnancy-and-childbirth, #reproduction-biological, #tests-medical

The Latest Issue in Divorces: Who Gets the Embryos?

Amid the pandemic, I.V.F. rates are on the rise, and so are disputes about what to do with remaining frozen embryos when couples split up. For some, it has gotten messy.

#artificial-insemination, #egg-donation-and-freezing, #embryos-human, #genetics-and-heredity, #in-vitro-fertilization, #infertility, #marriages, #pregnancy-and-childbirth, #reproduction-biological

The Everyday Chemicals That Might Be Leading Us to Our Extinction

In “Count Down,” Shanna Swan tells a story of declining sperm count, rising infertility and the possible extinction of the human species.

#bisphenol-a-bpa, #books-and-literature, #chemicals, #count-down-the-past-present-and-uncertain-future-of-the-big-four-accounting-firms-second-edition-book, #endocrine-gland, #estrogen, #hazardous-and-toxic-substances, #infertility, #reproduction-biological, #swan-shanna-h, #testosterone

What Are Sperm Telling Us?

Scientists are concerned by falling sperm counts and declining egg quality. Endocrine-disrupting chemicals may be the problem.

#chemicals, #endocrine-gland, #infertility, #regulation-and-deregulation-of-industry, #reproduction-biological, #sperm, #swan-shanna-h, #united-states, #united-states-politics-and-government

Cannibalism May Be Key for These Cockroach Couples

Males and females of a species that mates monogamously complete their bond by gnawing off each other’s wings, a new study found.

#cannibalism, #cockroaches, #ethology, #reproduction-biological, #research, #your-feed-animals, #your-feed-science

The World’s Rarest Turtle Has a Shot at Escaping Extinction

Conservationists confirmed that a Swinhoe’s softshell turtle found in Vietnam is female, reigniting hope for saving the species.

#conservation-of-resources, #endangered-and-extinct-species, #hanoi-vietnam, #reproduction-biological, #turtles-and-tortoises, #vietnam, #wildlife-conservation-society, #your-feed-animals, #your-feed-science

A Surprise in a 50 Million-Year-Old Assassin Bug Fossil: Its Genitals

Scientists were surprised to find the insect’s preserved penis, which suggests it was an unknown species.

#fossils, #insects, #paleontology, #papers-in-paleontology, #penis, #reproduction-biological, #research, #your-feed-animals, #your-feed-science

Finally in 3-D: A Dinosaur’s All-Purpose Orifice

This cloaca is more than 100 million years old, and it did a lot of work for this extinct species.

#anatomy-and-physiology, #anus, #crocodiles, #current-biology-journal, #dinosaurs, #feces, #fossils, #paleontology, #reproduction-biological, #research

Millipede Swarms Once Stopped Japanese Trains in Their Tracks

A team of scientists say they have figured out the cicada-like life cycles of the many-legged arthropods.

#animal-behavior, #arthropods, #cicadas-insects, #insects, #japan, #millipedes, #railroads, #reproduction-biological, #research, #royal-society-open-science-journal, #seasons-and-months, #your-feed-animals, #your-feed-science

Revealed: The Shipworm Sex Tapes

Nature’s weirdest clam surprises scientists once again, this time in video footage of its mating habits.

#animal-behavior, #biology-and-biochemistry, #biology-letters-journal, #clams, #fish-and-other-marine-life, #marine-borers-shipworms, #oregon, #reproduction-biological, #shipway-reuben, #sperm, #wood-and-wood-products, #your-feed-animals, #your-feed-science

The Sperm Kings Have a Problem: Too Much Demand

Many people want a pandemic baby, but some sperm banks are running low. So women are joining unregulated Facebook groups to find willing donors, no middleman required.

#artificial-insemination, #california-cryobank, #children-and-childhood, #facebook-inc, #genetics-and-heredity, #in-vitro-fertilization, #pregnancy-and-childbirth, #reproduction-biological, #social-media, #sperm, #women-and-girls

He Was a Stick, She Was a Leaf; Together They Made History

A surprise clutch of eggs has solved a century-old leaf insect mystery.

#biology-and-biochemistry, #brock-paul, #cumming-royce, #evolution-biology, #insectarium, #insects, #le-tirant-stephane, #montreal-quebec, #papua-new-guinea, #reproduction-biological, #your-feed-animals, #your-feed-science, #zookeys-journal

Ready to Mate? Take Off Your Mask, One Bat Says

Wrinkle-faced bats incorporate whistles, wing flaps and furry masks into their mating rituals, researchers have found.

#bats, #biology-and-biochemistry, #costa-rica, #public-library-of-science-plos, #reproduction-biological, #research, #your-feed-animals, #your-feed-science

Why Male Baboons Benefit From Female Friends

These male monkeys lived longer if they socialized with females, with or without benefits.

#animal-behavior, #friendship, #kenya, #monkeys-and-apes, #philosophical-transactions-of-the-royal-society-b-journal, #reproduction-biological, #research, #your-feed-animals, #your-feed-science

Hold Me, Squeeze Me, Bite My Head

Two recent research efforts looked into the southern alligator lizard, which has one of nature’s more extreme mating strategies.

#animal-behavior, #jaw-body-part, #lizards, #los-angeles-calif, #muscles, #proceedings-of-the-royal-society-b-journal, #reproduction-biological, #research, #your-feed-animals, #your-feed-science

Fossil Reveals ‘One of the Cutest Dinosaurs’ Ever Found

While many fossils have been flattened by time and the elements, a titanosaur found in an egg was preserved in three dimensions.

#argentina, #current-biology-journal, #dinosaurs, #eggs, #eyes-and-eyesight, #fossils, #paleontology, #reproduction-biological, #skull-body-part, #smuggling, #your-feed-science

Why Some Tropical Fish Are Gettin’ Squiggly With It

On occasion, different species of angelfish produce hybrid offspring even more colorful than the parents.

#coral, #fish-and-other-marine-life, #reefs, #reproduction-biological, #research, #your-feed-animals, #your-feed-science

He Doesn’t Mind Being Shared, Unless His Mates Try to Eat Each Other’s Eggs

A Brazilian frog species engages in reproductive behavior never seen in amphibians before.

#amphibians, #animal-behavior, #brazil, #frogs, #reproduction-biological, #research, #science-advances-journal, #your-feed-animals, #your-feed-science

The Poly-Parent Households Are Coming

We’re on the cusp of a technological revolution in baby making. What it means to be a family could be next.

#artificial-insemination, #families-and-family-life, #genetics-and-heredity, #homosexuality-and-bisexuality, #in-vitro-fertilization, #parenting, #reproduction-biological, #sperm

Infertility Was Distressing. The Military Made It Even More Complicated.

For service members like me, Tricare health insurance and the limited number of military medical facilities offering fertility treatments add more stress to an already emotional process.

#in-vitro-fertilization, #infertility, #pregnancy-and-childbirth, #reed-walter-national-military-medical-center, #reproduction-biological, #united-states-defense-and-military-forces

The Male Anglerfish’s Evolutionary Solution to Female Rejection

Commingling tissues and blood would normally prompt a massive immune response. These deep sea lovers found a workaround.

#biology-and-biochemistry, #evolution-biology, #fish-and-other-marine-life, #genetics-and-heredity, #immune-system, #reproduction-biological, #research, #science-journal, #your-feed-animals, #your-feed-science

Nature’s Noisiest Liars Carry Secrets in Their Calls

Many mammals that have loud calls to deceive other animals seem to have a particular learning style in common.

#biology-letters-journal, #elephants, #evolution-biology, #koalas, #mammals, #reproduction-biological, #seals-animals-and-sealing, #voice-and-speech, #your-feed-science

Scientists Accidentally Bred the Fish Version of a Liger

American paddlefish and Russian sturgeon were not supposed to be able to create hybrid offspring. Surprise!

#conservation-of-resources, #endangered-and-extinct-species, #fish-and-other-marine-life, #genes-journal, #hungary, #reproduction-biological, #research, #sturgeon-fish, #your-feed-animals, #your-feed-science

This Ancient Sea Creature Builds Its Body With a Whisper, Not a Scream

Unlike vertebrate embryo cells, which signal to each other over long distances, sea squirt embryo cells talk only to those they’re closest to.

#animals, #biology-and-biochemistry, #fish-and-other-marine-life, #reproduction-biological, #research, #science-journal, #sea-squirts

Growing a Family in the Shadow of a Pandemic

Six households weighed the risks of conceiving and carrying a child during the coronavirus outbreak, each balancing their concerns against an uncertain future.

#coronavirus-2019-ncov, #families-and-family-life, #parenting, #reproduction-biological

Mother Sea Turtles Might Be Sneakier Than They Look

The large reptiles make decoy nests to distract predators during an oft-ignored behavior following their egg laying, researchers say.

#beaches, #burns-thomas-researcher, #caribbean-area, #eggs, #fish-and-other-marine-life, #kennedy-malcolm-researcher, #reproduction-biological, #research, #royal-society-open-science-journal, #sand-and-gravel, #turtles-and-tortoises, #your-feed-science

The Sound of One Shrimp Snapping

How climate change is altering nature’s sonic landscape.

#animal-behavior, #animals, #australia, #birds, #drought, #fish-and-other-marine-life, #frogs, #global-warming, #krause-bernie, #nagelkerken-ivan, #oceans-and-seas, #puerto-rico, #reproduction-biological, #spring-season, #summer-season, #weather, #whales-and-whaling, #your-feed-science

As Mating Rituals Go, Valentine’s Day Isn’t So Bad

Four reproductive tales from the animal kingdom, where sealing the deal doesn’t always turn out so great for one partner.

#animal-behavior, #bedbugs, #evolution-biology, #octopus, #reproduction-biological, #research, #snails, #turtles-and-tortoises, #valentines-day, #your-feed-science