Close-up of a fiber with brightly colored pathogens beside it
Microplastics in Seawater May Harbor Parasites
Laboratory experiments find that Toxoplasma, Cryptosporidium, and Giardia can congregate on microplastic beads and fibers, suggesting they might make their way into and around the world’s oceans by hitching rides on tiny bits of trash.
Microplastics in Seawater May Harbor Parasites
Microplastics in Seawater May Harbor Parasites

Laboratory experiments find that Toxoplasma, Cryptosporidium, and Giardia can congregate on microplastic beads and fibers, suggesting they might make their way into and around the world’s oceans by hitching rides on tiny bits of trash.

Laboratory experiments find that Toxoplasma, Cryptosporidium, and Giardia can congregate on microplastic beads and fibers, suggesting they might make their way into and around the world’s oceans by hitching rides on tiny bits of trash.

parasites
Yellow and black caterpillar crawling on a leaf in a green background
Virus Alters Caterpillars’ Vision to Trick Them into Climbing
Alejandra Manjarrez | Mar 25, 2022
A study finds that a baculovirus that infects cotton bollworm larvae changes the expression of genes involved in light perception, driving them to seek heights that could favor viral transmission.
smiling woman against a backdrop of bookshelves
WHO Scientist Mwele Malecela Dies at 59
Pradip Chatterjee | Mar 4, 2022
Her achievements included developing a roadmap to tackle neglected tropical diseases.
Illustration of clear cells with orange nuclei, Toxoplasma gondii, on colorful background
Turning Toxoplasma Against Cancer
Annie Melchor | Jan 3, 2022
Several research groups have found that Toxoplasma gondii infection can ramp up antitumor immune responses in mice. Can the single-cell parasite be used to develop safe treatments for humans?
juvenile salmon with parasitic infection
A “Climate Catastrophe”: Western US Salmon on the Brink
Lisa Winter | Jul 27, 2021
A recent sampling from two California streams found nearly all juvenile salmon were infected with deadly parasites, and conditions are expected to worsen.
Q&A, conservation biology, ecology & environment, freshwater mussel, translocation, parasite, pathogen
Conservation Biologists May Unintentionally Spread Pathogens
Amanda Heidt | Apr 19, 2021
When conservationists relocate species, they don’t always account for the pathogens hitching a ride, and the consequences of introducing them to a new environment.
Chelsea Wood Tracks Parasites Around the World
Amanda Heidt | Nov 1, 2020
The University of Washington parasite ecologist aims to understand how humans have changed the diversity and abundance of the enigmatic and misunderstood organisms.
Image of the Day: Microscopic Creatures
Emily Makowski | Dec 12, 2019
View the top three winners of this year’s Nikon Small World in Motion Competition.
malaria infographic
Infographic: Fighting Malaria Drug Resistance
Natalie Slivinski | Mar 1, 2019
The parasite that causes malaria has evolved to evade many of the drugs that researchers have developed to fight the tropical disease.
foundations
Flower Preservation, 1916
Catherine Offord | Feb 1, 2019
James Kirkham Ramsbottom saved Britain’s daffodil industry from a devastating parasite, only to be forgotten.
Caught on Camera
The Scientist Staff | Dec 1, 2018
Selected Images of the Day from the-scientist.com
Nest Herbs Encourage Starling Parents to Incubate Their Eggs
Ashley Yeager | Sep 1, 2018
The presence of aromatic greens in with other building materials increased the time birds sat on their eggs, improving the health of the hatchlings.
Image of the Day: Medicinal Millipedes
Sukanya Charuchandra | Jul 31, 2018
Certain lemurs in the forests of Madagascar eat millipedes to protect themselves from parasitic infections of the gut.
Image of the Day: Hold My Brood
The Scientist Staff and The Scientist Staff | May 9, 2018
Cuckoo catfish trick cichlids into caring for their eggs in a strategy known as brood parasitism.
Image of the Day: Bad House Guest
The Scientist Staff and The Scientist Staff | Oct 9, 2017
Parasitoid wasps inoculate other insects with their eggs, and their offspring then grow to feed on their "homes," effectively sucking the life out of their dying hosts.
Image of the Day: Better Together
The Scientist Staff and The Scientist Staff | Oct 5, 2017
When it comes to thwarting roundworms, scientists find that combining four antiparasitic drugs in smaller doses packs a greater punch than the four drugs alone.
Study: Bumblebee Species Declining Worldwide
Aggie Mika | Jul 20, 2017
The first global evaluation of populations demonstrates that certain species are diminishing considerably.
This Parasitic Plant Steals More Than Nutrients From Its Hosts
David Smith | Feb 1, 2017
The plant Lophophytum pilfers mitochondrial genes from the species it parasitizes.
Study: One Wasp Takes Control of Another
Jef Akst | Jan 24, 2017
Crypt keeper wasps appear to command crypt gall wasps to dig exit tunnels on their behalf.
Slumber Numbers
Jef Akst | Mar 1, 2016
Ideas abound for why some animal species sleep so much more than others, but definitive data are elusive.