Classroom Science Leads to Revision of Megalodon’s Size
Classroom Science Leads to Revision of Megalodon’s Size
A handful of high schoolers prompt scientists to develop a new approach for calculating the size of the ancient behemoth.
Classroom Science Leads to Revision of Megalodon’s Size
Classroom Science Leads to Revision of Megalodon’s Size

A handful of high schoolers prompt scientists to develop a new approach for calculating the size of the ancient behemoth.

A handful of high schoolers prompt scientists to develop a new approach for calculating the size of the ancient behemoth.

sharks
While Some Sharks Flee, Tiger Sharks Brave Stormy Seas
While Some Sharks Flee, Tiger Sharks Brave Stormy Seas
Nikk Ogasa | May 12, 2021
For the first time, scientists tracked large shark movements during hurricanes and found that tiger sharks may find the turmoil opportunistic for feeding.
Oceanic Shark and Ray Numbers Down 71 Percent over Past 50 Years
Oceanic Shark and Ray Numbers Down 71 Percent over Past 50 Years
Lisa Winter | Jan 28, 2021
Overfishing is the biggest factor driving these species toward extinction, researchers conclude from a new study.
Climate Change Could Drive Sharks to Fishing Grounds: Study
Climate Change Could Drive Sharks to Fishing Grounds: Study
Asher Jones | Jan 28, 2021
Blue sharks don't dive as deeply in low-oxygen waters—which become more prevalent as oceans warm—effectively pushing them into areas of high fishing pressure.
Isotopic Bomb Traces Are a Boon to Biological Dating
Isotopic Bomb Traces Are a Boon to Biological Dating
Shawna Williams | Feb 21, 2020
The decades-old signature of nuclear testing can reveal the ages of organisms, or even individual cells.
Image of the Day: Fluorescent Sharks
Image of the Day: Fluorescent Sharks
Nicoletta Lanese | Aug 13, 2019
A newfound family of metabolites emits green light in response to the blue light of the deep ocean, causing certain sharks to glow.
Image of the Day: Death Traps
Image of the Day: Death Traps
Chia-Yi Hou | Jul 18, 2019
Sharks and rays can get entangled in abandoned fishing gear, leading to injuries or death.
Image of the Day: It’s a Shark!
Image of the Day: It’s a Shark!
Carolyn Wilke | Jan 8, 2019
A newly developed underwater ultrasound reveals a fetal shark swimming between the two uteri of its mother.
Researchers Track Sharks and Whales Using DNA in Seawater Samples
Researchers Track Sharks and Whales Using DNA in Seawater Samples
Jef Akst | Jan 1, 2019
In addition to detecting unseen organisms in the ocean, studies of environmental DNA can shed light on the genetic structure of marine populations.
Hunting with Sharks
Hunting with Sharks
The Scientist Staff | Aug 31, 2016
Watch scenes from research at the University of South Florida's Mote Marine Laboratory, where scientists saw what happened when they knocked out sharks' electroreception.