Earthquakes

Magnitude 5+ Earthquakes – Global

5.4 earthquake hits Tonga.

5.2 earthquake hits southeast of Easter Island.

5.0 earthquake hits the Solomon Islands.

5.0 earthquake hits Seram, Indonesia.

Storms and Floods

Tropical Storms – Roundup of Tropical Storms:

In the North Indian Ocean: Tropical cyclone 02b (Yaas), located approximately 98 nm southwest of Kolkata, India, is tracking northwestward at 06 knots.

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Wildlife

Madagascar may be a secret stronghold for Coelacanths ‘living fossil’ fish

Madagascar may be a secret stronghold for coelacanths, the “living fossil” fish that were considered extinct until a fisherman caught one in 1938 off South Africa.

Coelacanths of the same species — Latimeria chalumnae — have since turned up off Tanzania, the Comoros (a group of islands off the eastern coast of Africa) and Madagascar. Now, a new review of the Madagascar fishery bycatch, or accidental catch, reveals that at least 34 confirmed specimens have been caught and that many more likely have been pulled up that never reached the attention of biologists or conservationists. Though the overall population numbers remain a mystery, the authors of the new study suspect that Madagascar may be an important habitat for coelacanths and that it may even be their ancestral home.

With 420 million years of history behind them, coelacanths are older than Madagascar, which has had a coastline for 88 million years and has been in its current location for about 40 million years.

These fish evolved 180 million years before the dinosaurs first emerged, surviving even as continents shifted and an asteroid wiped out much of life on Earth, including marine “sea monsters” like mosasaurs. Known first from fossils, coelacanths were believed extinct until a trawler caught one in a gill net in December 1938 near South Africa.

Coelacanth

Great white shark population off California’s coast is growing

The great white shark population off Northern California’s coast is healthy and growing, a new study finds.

A survey of the great whites (Carcharodon carcharias) off the northern coast finds a stable adult population and a slight uptick in the number of subadult sharks, totaling 300 individuals. Researchers used a seal decoy to lure the apex predators to their boats so they could photograph and count the sharks. The findings are great for the region.

Global Warming

Climate Change Affects Fly Fertility

There is increasing evidence that human and wildlife fertility is declining. Although chemicals in our environment have been identified as the main causes, our new research shows that there is another looming threat to animal birth. It’s climate change.

We know that animals can die if the temperature rises too high. However, a new study suggests that some species of male flies can become infertile even at less extreme temperatures.

This means that the distribution of species can be limited by the temperature at which they can reproduce, not the temperature at which they can survive.

Researchers have long known that animal births are sensitive to heat stress.

For example, studies have shown that a 2 ° C increase in temperature dramatically reduces coral sperm bundle production and egg size. And in many beetle and bee species, fertilization success declines sharply at high temperatures. High temperatures have also been shown to affect fertilization and sperm count in cattle, pigs, fish and birds.

Researchers found that 11 of the 43 fly species examined, experienced an 80% loss of fertility immediately after heat stress at temperatures below lethal levels.

Disease

Covid-19

The countries with the 10 greatest number of Covid-19 cases:

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Ebola and Lassa fever – Guinea

The declaration to the end of the Ebola Virus Disease (EVD) outbreak is around the corner–scheduled for June 19. To date, a total of 23 cases have been reported, including 16 confirmed cases, and 7 probable cases, of which 9 have recovered, and 12 have died (case fatality ratio 52.2%). A confirmed case of Lassa fever was notified on 8 May 2021 at the Yomou prefecture hospital. The patient was also confirmed to be positive for COVID-19 and later died. To date, no new suspected cases of Lassa hemorrhagic fever have been reported.