A previously unidentified Maya civilization made up of 964 interconnected settlements has been discovered in northern Guatemala. Dated to the Preclassic Maya period – which lasted from around 1,000 BCE until 150 CE – the scattered sites cover an area of approximately 1,685 square kilometers (650 square miles) and are linked by 177 kilometers (110 miles) of ancient roads.

Researchers spotted the network of settlements using LiDAR, a detection system that bounces laser signals off surfaces in order to reveal hidden features and structures. While flying over Guatemala’s Mirador-Calakmul Karst Basin (MCKB), the team utilized the technology in order to penetrate the thick jungle canopy and expose the ancient constructions lurking beneath.

“The LiDAR survey revealed an extraordinary density and distribution of Maya sites concentrated in the MCKB, many of them linked directly or indirectly by a vast causeway network,” write the researchers in a new study. In total, they found 775 sites within the MCKB itself, with a further 189 located in the surrounding karstic ridge.

TOM20 protein production rescued nerve cells damaged in Parkinson’s due to the toxic build-up of alpha-synuclein protein, a rat study found.

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For years and over three separate experiments, “lepton universality” appeared to violate the Standard Model. LHCb at last proved otherwise.

Longtermism extends this thinking to what impartiality demands in the temporal sense: equal concern for people’s wellbeing wherever they are in time. If we care about the wellbeing of unborn people in the distant future, we can’t outright dismiss potential far-off threats to humanity—especially since there may be truly staggering numbers of future people.

How Should We Think About Future Generations and Risky Ethical Choices?

An explicit focus on the wellbeing of future people unearths difficult questions that tend to get glossed over in traditional discussions of altruism and intergenerational justice.

“In their world, everything is just a blur,” says Healy. The starfish’s temporal perception may be so slow because it is an herbivore – it doesn’t need to strike fast to get a meal. A tasty coral polyp will be in the same place even if it takes the starfish more than a second to find it. A marine predator such as a shark, on the other hand, needs to see faster to catch fish, which are constantly moving.

On average, flying animals detect light changes at a faster rate than land-bound animals, likely because they need to be able to sense changes around them quickly to avoid collisions. “If you fly, you see faster,” says Healy.

Healy’s research found that dragonflies can perceive changes in their environment the fastest, detecting 300 flashes per second – nearly five times faster than humans and 400 times faster than starfish. “It’s almost like bullet time in The Matrix,” says Healy, describing dragonflies’ time perception.

Sarojini Mohanta from Odisha nurtured each of the saplings in a patch of the Bonai Forest Division as her own. Today, this forestland is named ‘Sarojini Vana’ in her honour.

The Visible app tracks heart rate variability as a primary symptom of Long COVID. Data collected is shared with Imperial College London.