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Photo of Claudia Gerri
Claudia Gerri Studies the Mysteries of the Placenta
At the Max Planck Institute of Molecular Cell Biology and Genetics, the developmental biologist is probing the maternal-fetal interface across mammalian species.
Claudia Gerri Studies the Mysteries of the Placenta
Claudia Gerri Studies the Mysteries of the Placenta

At the Max Planck Institute of Molecular Cell Biology and Genetics, the developmental biologist is probing the maternal-fetal interface across mammalian species.

At the Max Planck Institute of Molecular Cell Biology and Genetics, the developmental biologist is probing the maternal-fetal interface across mammalian species.

zebrafish
A green and white fish swimming underwater
Rockfish Genes Hold Clues to Human Longevity
Natalia Mesa, PhD | Jan 12, 2023 | 3 min read
By analyzing the genomes of 23 remarkably long-lived fish species, a study found two metabolic pathways associated with longevity.
zebrafish in an aquarium
Epigenetics May Remember Ancestors’ Mutations
Holly Barker | Dec 1, 2022 | 4 min read
Parents’ mutations, even if they’re not inherited by offspring, could affect subsequent generations through changes to epigenetic marks, a study finds.
istock
How to Grow a Mouse Embryo in a Dish
Roni Dengler, PhD | 3 min read
Researchers are taking the concept of three-dimensional cell culture beyond single organoids to develop embryos from cells.
Zebrafish with fluorescent nervous system in green.
Oust the Mouse: A Plan to Reduce Mammal Use in Drug Development
Natalia Mesa, PhD | Mar 15, 2022 | 7 min read
The Scientist spoke to Mount Desert Island Biological Laboratory’s Jim Strickland about the institute’s new MDI Bioscience initiative to perform more drug testing and development in nonmammalian models.
illustration of a broken DNA strand
DNA Damage Makes Zebrafish Sleepy
Sophie Fessl, PhD | Nov 18, 2021 | 4 min read
Buildup of a DNA-repair protein in brain cells spurs shut-eye in the fish, a study finds, and similar results in mice suggest the mechanism is widespread in animals.
A Simple Genetic Change Adds Limb-Like Bones to Zebrafish Fins
Abby Olena, PhD | Feb 5, 2021 | 4 min read
A gain-of-function mutation in a single gene reveals ancient limb-forming capacity that has been preserved for hundreds of millions of years.
model organism, zebrafish, sponge, cell &molecular biology, genetics & genomics, enhancer, transcription, non-coding DNA, gene regulation, evolution
Regulators of Gene Activity in Animals Are Deeply Conserved
Amanda Heidt | Nov 6, 2020 | 5 min read
Enhancers, short regions of DNA that direct gene expression, of species separated by 700 million years of evolution worked interchangeably, according to a new study.
Michelle Gray Tracks Huntington’s in Different Brain Cells
Amanda Heidt | Oct 1, 2020 | 3 min read
The University of Alabama at Birmingham neuroscientist aims to determine which cells are most important in prompting the disease’s initiation and progression.
Scientists Predict Fish Behavior from Real-Time Brain Monitoring
Abby Olena, PhD | Jan 22, 2020 | 3 min read
Researchers could anticipate which way an eight-day-old zebrafish will flick its tail based on brain activity 10 seconds earlier.
Image of the Day: Zebrafish Olfactory Epithelium
Emily Makowski | Nov 1, 2019 | 1 min read
Studies of the rosette-like structure can reveal clues to brain recovery after injury.
Sleep Is Critical for the Zebrafish Brain to Repair DNA Damage
Catherine Offord | Mar 6, 2019 | 2 min read
Neurons can only efficiently fix genetic injuries when the animals are asleep.
Image of the Day: Water Sensors
Carolyn Wilke | Feb 19, 2019 | 1 min read
Zebrafish detect water movement around them through signals sent to the brain by cells containing tiny hairs.
Effects of Antidepressants Span Three Generations in Fish
Diana Kwon | Dec 10, 2018 | 4 min read
Fluoxetine dampened stress responses in zebrafish embryos exposed to the drug—and their descendants.
immune cells in zebrafish gut
Image of the Day: Gut Feeling
Shawna Williams | Nov 28, 2018 | 1 min read
An unusual population of immune cells appears to exist in zebrafish as well as mammals.
Image of the Day: See Through
Catherine Offord | Nov 6, 2018 | 1 min read
A zebrafish model of the birth defect craniosynostosis provides insights into how the condition develops.
Image of the Day: The Birth of a Nervous System
Jef Akst | Oct 2, 2018 | 1 min read
The winner of the 2018 Nikon Small World in Motion video competition shows the development of sensory neurons in a zebrafish embryo.
Image of the Day: Single Origin
Sukanya Charuchandra | Aug 10, 2018 | 1 min read
Despite being made of different materials, zebrafishes’ and land animals’ scales form in a similar process.
Image of the Day: Bundle of Nerves
Sukanya Charuchandra | Jul 26, 2018 | 1 min read
Live-cell imaging reveals the secrets of innervation in the pancreas of zebrafish.
Magnetic Microrobots Deliver Cells Into Living Animals
Sukanya Charuchandra | Jun 27, 2018 | 1 min read
The miniscule carriers successfully transported and released live cells at a particular location within living mice.
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