Brown bird in nest surrounded by pink flowers
Earlier Nesting in Chicago-Area Birds Linked to Warming
A study finds that dozens of bird species are nesting up to 25 days sooner each year than they were a century ago, likely due to climate change.
ABOVE: © iStock.com, johnandersonphoto
Earlier Nesting in Chicago-Area Birds Linked to Warming
Earlier Nesting in Chicago-Area Birds Linked to Warming

A study finds that dozens of bird species are nesting up to 25 days sooner each year than they were a century ago, likely due to climate change.

A study finds that dozens of bird species are nesting up to 25 days sooner each year than they were a century ago, likely due to climate change.

ABOVE: © iStock.com, johnandersonphoto

eggs

mummy
Scratchy Scalps Help Glue Together Pieces of an Ancient Past
Chloe Tenn | Dec 29, 2021
Scientists find human DNA preserved in lice cement from the heads of South American mummies.
Baby Born from Egg that Was Matured and Frozen in the Lab
Catherine Offord | Feb 19, 2020
A cancer patient who underwent the new fertility preservation procedure successfully gave birth five years after her immature eggs were collected.
Aneuploidy Could Explain Variability in Female Fertility: Study
Catherine Offord | Jan 13, 2020
Eggs from girls and from older women show higher rates of errors in chromosome number.
Image of the Day: Scrambled Frog Eggs
Emily Makowski | Nov 6, 2019
Cellular innards can reorganize themselves to form structures similar to cells.
Image of the Day: Synchronous Spawning
Emily Makowski | Sep 9, 2019
Groups of corals release all of their eggs and sperm once a year, but the timing of their spawning is under threat from climate change.
Unhatched Gulls Shake Their Shells to Warn Siblings of Danger
Nicoletta Lanese | Jul 23, 2019
The unborn chicks translate auditory alarms from adult birds into quaking vibrations.
milkweed bug eggs Oncopeltus fasciatus
Ecology, Not Physics, Explains Diversity of Insect Eggs
Viviane Callier | Jul 3, 2019
Insect eggs can take any shape at almost any size, refuting explanations for their dimensions based on geometric scaling laws or on relationships between egg traits and adult traits.
Voodoo Dolls, Roller-Coasters for Kidney Stones Win at Ig Nobels
Ashley Yeager | Sep 14, 2018
The awards for comical but practical scientific discovery also include cannibalism and self-colonoscopy.
Image of the Day: A Good Egg
Sukanya Charuchandra | Jul 18, 2018
Osprey numbers are recovering after a drop in contaminants in the Delaware Estuary.
Large Female Fish Play a Big Role in Replenishing Populations: Study
Diana Kwon | May 11, 2018
Bigger, older mothers produce disproportionately more eggs than their smaller counterparts do.
Image of the Day: Eggshell Edifice
The Scientist Staff, The Scientist Staff | Apr 6, 2018
A new 3-D model plumbs the molecular intricacies of eggshell composition.
Image of the Day: Tardigrade Eggs
The Scientist Staff, The Scientist Staff | Mar 2, 2018
The studded cells belong to a newly discovered species of water bear, Macrobiotus shonaicus
Coral Sperm Banker
The Scientist Staff | Jan 31, 2018
Mary Hagedorn is racing to save Earth’s coral reefs by developing techniques for freezing the colonial animals’ gametes.
Hundreds of Pterosaur Eggs Discovered in China
Kerry Grens | Nov 30, 2017
The fossil booty includes some eggs with embryo remains inside, and points to group nests involving long-term parental care.
Long Egg Incubations May Have Doomed the Dinosaurs
Diana Kwon | Jan 4, 2017
An investigation of fossilized teeth reveals that some dinosaurs took more than six months to hatch, hindering their abilities to procreate quickly and efficiently.
Further Support for Early-Life Allergen Exposure
Jef Akst | Sep 20, 2016
Egg and peanut consumption during infancy is linked to lower risk of allergy to those foods later in life, according to a meta-analysis.
Capsule Reviews
Bob Grant | Apr 1, 2016
Lab Girl, The Most Perfect Thing, Half-Earth, and Cosmosapiens
Call for Germline Editing Moratorium
Jef Akst | Mar 13, 2015
In response to speculation that groups have edited the DNA of human embryos, researchers request that gene editing of human reproductive cells be halted.
Toward Lab-Grown Gametes
Tracy Vence | Dec 30, 2014
From stem cells, scientists generate early egg- and sperm-like cells in vitro.