Trees can’t outrun climate change. Should humans give them a lift?

Credit: Pixabay/CC0 Public Domain One tree at a time, David Saville has made it his life’s work to bring back West Virginia’s red spruce forests—and maybe help preserve the species hundreds of miles farther north while he’s at it. Last year, Saville spent weeks hiking up peaks like Panther Knob, Dolly Sods and Top of … Read more

Humans evolved with their microbiomes. Like genes, your gut microbes pass from one generation to the next

Credit: CC0 Public Domain When the first humans moved out of Africa, they carried their gut microbes with them. Turns out, these microbes also evolved along with them. The human gut microbiome is made up of hundreds to thousands of species of bacteria and archaea. Within a given species of microbe, different strains carry different … Read more

Dolphins use signature whistles to represent other dolphins, similar to how humans use names

CC BY-ND” width=”800″ height=”530″/> The researchers found that dolphins can identify each other by swimming through and tasting urine, the liquid in the syringe in this photo. Credit: Dolphin Quest, CC BY-ND Bottlenose dolphins’ signature whistles just passed an important test in animal psychology. A new study by my colleagues and me has shown that … Read more

Slugs, snails are not alone in causing rat lungworm disease in humans

Platydemus manokwari, an introduced flatworm present in Hawaii’i, which can act as a paratenic host of the rat lungworm parasite and that has been implicated in causing rat lungworm disease in Okinawa. Credit: Shinji Sugiura. A review of decades of research revealed more than a dozen kinds of animals in addition to slugs and snails … Read more

NASA’s Artemis 2 mission: Taking humans to the moon’s orbit

Artemis 2 is the second scheduled flight of the Artemis program. Following the launch and splashdown of the uncrewed Artemis 1, Artemis 2 aims to bring humans into the moon’s orbit for the first time since 1972. Artemis 2 will use the huge Space Launch System (SLS) megarocket and Orion spacecraft to launch the crew … Read more

New Mexico mammoths among best evidence for early humans in North America

The remains of two mammoths discovered in New Mexico show that humans lived in North America much earlier than thought. Credit: NPS. About 37,000 years ago, a mother mammoth and her calf met their end at the hands of human beings. Bones from the butchering site record how humans shaped pieces of their long bones … Read more

Fossil tooth analysis brings to light earliest humans from southern Africa

Figure 1: geometric morphometric analyses of the enamel-dentine junction. Credit: Southern Cross University Fossil tooth analysis by Southern Cross University geochemist Dr. Renaud Joannes-Boyau has played a central role in an international collaboration that has properly identified the earliest humans. The new study, published in the journal Proceedings of the National Academy of Sciencesdemonstrates that … Read more

Why it is so hard for humans to have a baby?

Credit: Pixabay/CC0 Public Domain New research by a scientist at the Milner Center for Evolution at the University of Bath suggests that “selfish chromosomes” explain why most human embryos die very early on. The study, published in PLoS Biologyexplaining why fish embryos are fine but sadly humans’ often don’t survive, has implications for the treatment … Read more

Limiting global warming to 1.5 degrees Celsius would reduce risks to humans by up to 85%

Flooding in Key Haven caused by hurricane Wilma on 10/24/2005. Credit: Marc Averette/Wikipedia New research led by the University of East Anglia (UEA) quantifies the benefits of limiting global warming to 1.5 degrees Celsius and identifies the hotspot regions for climate change risk in the future. The study calculates reductions in human exposure to a … Read more