Red tide' and a loss of sea grass account for some manatee deaths, but researchers believe undiscovered factors are also at play.

A record number of endangered manatees are dying in Florida's algae-choked waterways. So far this year, 582 manatees have died, more than any year on record, according to preliminary numbers from the Florida Fish and Wildlife Conservation Commission (FWC).

Pat Rose is an aquatic biologist and the executive director of the Save the Manatee Club, an organization devoted to preserving the animal. In his interview with TakePart, Rose reports the estimated minimum population of these gentle beasts is only 3,100 adults. That means their population has decreased by more than 10 percent in just four months.

A total of 247 of these have died in the southwest of the state due to an explosion of a red-hued algae called Karenia brevis, also known as a red tide.

This pesky microorganism produces neurotoxins that can kill manatees by causing them to seize to the point where they can't make it to the surface - or even lift their head out of the water - to breathe.

The large marine mammals are also dying in the eastern part of the state, in Brevard County near Orlando. Rose says a gradual die-out of sea grass, upon which the manatees feed, has combined with blooms of brown algae and likely other unknown factors to kill nearly 150 more manatees. Since 2010, about 30,000 acres of sea grass have been wiped out.

Luckily, it appears that both events are winding down, and the rate of manatee deaths appears to be slowing. But that's cold comfort for Rose, since the number of threats to manatees appears to be growing, and little is being done to address the problem.

Traditionally, boat collisions have been the biggest killer of manatees; they're vulnerable since they're large, slow-moving and often hang out on the surface. Until this year, at least 41 percent of all manatee deaths resulted from these collisions, and likely more, because not all of these deaths are reported or detected.

When it comes to mysteries, there's no better place for hiding them than the bottom of the ocean. In fact, according to the National Oceanic and Atmospheric Administration (NOAA), as much as 95% of the world's oceans remain unexplored.

And yet some people don't believe in sea monsters.

Well, thanks to the advent of the internet, we can do some of that exploring from the comfort of our computer chairs, and you never know what sorts of strange stuff will turn up. Our pal Samuel Burgan (AKA IceBurg) was doing just that, and found a bunch of bizarre markings on the ocean floor, so he sent a few snapshots our way.

Chilean Navy discovers more than 600 dead animals in Punta de Choros, a small fishing town north of La Serena.

The bodies of sea lions, cormorants and penguins littered a seven mile stretch of beach in Punta de Choros, northern Chile on Sunday. The crime scene is in close proximity to the Humboldt Penguin Nature Reserve.

Two days prior the Movement in Defense of the Environment (MODEMA) reported a band of ten fishing boats off the coastline of Punta de Choros. MODEMA and other environmental groups accused the boats of blast fishing - using explosives to catch mass quantities of fish.

Sernapesca, Chile's National Fishing Service, investigated the scene and determined that all the animals were killed by the same incident. Autopsies report animals with fractured skulls, missing rib cages and multiple abrasions.

Local authorities promptly called in the Investigative Police's (PDI) Environmental Crime Brigade for further investigation. Microbiological and chemical analysis tests are currently being run to determine if blast fishing is the cause of death.

In Chile, blast fishing is illegal. Companies caught fishing in this manner face prison time and fines. The monetary amount depends on the damage to the ecosystem. However, causing the death of penguins during commercial activities is a jailable offense. Officials from Sernapesca told The Santiago Times that the combined offenses amount to a "serious crime."

Fairbanks - Birds of all kinds are arriving in dizzying numbers and many long-time birders say they have never seen such a concentrated wave of migrating birds in the Tanana Valley.

Bud Johnson in Tok estimates there were 100,000 sparrows descending on that area Tuesday. He reported seeing continuous flocks along the sides of the highway, and came home to hundreds of songbirds in his yard. White-crowned, golden-crowned, fox and tree sparrows mixed with juncos, rusty blackbirds and Lapland longspurs. Other viewers saw Lincoln's and Savannah sparrows and gray-crowned rosy-finches.

"I have never seen anything like this ever," Johnson said. "The ground is just in constant movement and the singing (mostly from the white-crowned sparrows) is insane."

Among bird-watchers, there is a phenomenon called "fallout," which is when a large number of migrating birds make landfall because they run into storm systems. Usually this happens along the coast, where exhausted birds touch down on the first solid ground they find. It's possible a combination of the late spring breakup and a current weather front has caused this unusual spring gathering.

"This is turning out to be the most spectacular spring migration I think the Tanana Valley has seen in recent memory," Fairbanks birder Nancy DeWitt wrote in an email. "First, there were the unprecedented numbers of swans and white-fronted geese in the Delta barley fields (many of which are still there) accompanied by the biggest flocks of Canada geese and pintails I've ever seen, now followed by what Steve Dubois says is the largest concentration of sandhill cranes he's seen in his 28 years there.

"Add in the numerous bluebird sightings (I've lost count), cloud after cloud of Lapland longspurs moving through the valley, thick groups of varied thrush at Fort Greely on Saturday night, and now the sparrow fall-out in Tok Bud describes, and I am just beside myself with glee," she said. "I assume most of this is weather related, but what happened and where along the migration route that balled up all these birds? I suppose the fact that a lot of the valley is snow-covered and many ponds and lakes are still frozen is also concentrating birds, but would sure love to know if anyone tracked migration radar data over Canada in the past month.

Christmas music played Friday in the lobby of the McKinley Chalet Resort, just outside Denali National Park and Preserve.

It was fitting, considering the weather outside.

A heavy spring snowstorm dumped enough snow in the area to cancel some local events, keep people from driving and surprise a few tourists.

A winter storm watch remained in effect until this morning.

"The guests are actually enjoying the experience," said Craig Pester, district manager of Aramark's Denali resorts. "We had to change a couple tours around so they didn't get the full experience, but all the guests are very happy. They're kind of making it part of their adventure."

Indeed, the Elliotts who are visiting from South Carolina thought the snow was pretty exciting, as they huddled behind an umbrella. What an Alaska experience, they said.

A visitor from Germany came north for better weather and ended up camping in the snow at Riley Creek Campground. He took it all in stride.

Cold air across so much of Alaska, so late in the year, has delayed summer for the winter weary and left thousands of international travelers in holding patterns. An unexpected bonanza of migrating birds are reportedly hunkered down northwest of Denali National Park and Preserve. In the Delta-Tok region, thousands more cranes, swans, geese, and swallows than usual are waiting out conditions unusual even for Alaska.

Birds often "ball-up" in foul weather, congregating along coastlines and then fly over vast Interior Alaska in waves. Not this year. One local birder told the Fairbanks Daily News-Miner he'd never seen so many stopped over, all at once, in more than 20 years.

Arctic air pushing southward and smaller low-pressure systems have kept cold weather lingering. Up to 6 inches of snow was forecast over the weekend in Anchorage, with accumulation likely in Fairbanks as well, the National Weather Service predicted, though ground temperatures would melt most of it.

Normally, late May sees warmer air from the Gulf of Alaska pulled north across the state, but for now, at least, much of Alaska remains near freezing or colder.

"It is a real fluke. We just haven't gotten into our summer pattern yet," meteorologist Dan Peterson said. Next week, forecasts called for highs in the 50s and 60s from Anchorage, in Southcentral Alaska, north to Fairbanks.

Event Time
2013-05-18 05:48:00 UTC
2013-05-18 14:48:00 UTC+09:00 at epicenter

Location
37.761°N 141.454°E depth=41.5km (25.8mi)

Nearby Cities
50km (31mi) NE of Namie, Japan
61km (38mi) ESE of Watari, Japan
62km (39mi) ESE of Marumori, Japan
63km (39mi) ESE of Kakuda, Japan
278km (173mi) NE of Tokyo, Japan

Technical Details

From urban and developed to remote and isolated, lakes around Minnesota contain a wide range of chemicals, including DEET, BPA, prescription drugs and even cocaine.

The findings, which came out of the first large-scale, systematic statewide study, suggest that it might be worth taking a wider look at bodies of water around the country for chemicals that have potential consequences for both the environment and human health.

For now, it's not clear how all of the chemicals are getting into Minnesota's lakes or exactly what effects they might be having on animals or people.

"It's not as though people should worry about going to the lake or taking their dogs to the lakes," said Mark Ferrey, an environmental scientist at the Minnesota Pollution Control Agency, which published the new report. "We're talking about how we're affecting lakes and rivers in ways that we probably don't understand yet."

"It's disquieting," he added. "We could be affecting fish populations or entire ecosystems in ways that are largely invisible to us."

Starting about a decade ago, in routine reconnaissance, Ferrey and colleagues began collecting surface waters from rivers and streams around Minnesota. As expected, analyses showed contaminants downstream from wastewater treatment plants and in other highly developed areas. But the researchers were surprised when chemicals also turned up in background samples collected in lakes with mostly untouched shorelines.

The UK's spring butterflies are being welcomed by enthusiasts, but weeks later than they usually arrive.
The second-coldest March on record contributed to the delayed emergence of many rare species, according to the charity Butterfly Conservation.

"First sightings" recorded by the public showed the insects typically appeared a fortnight later than normal.

One rare species - the grizzled skipper - emerged a month later than last year.

The pearl-bordered fritillary was another rare butterfly to make a late show. Last year the insects were first spotted on 1 April but were not recorded until 27 April this year.

Threatened wood whites could be seen by 10 April last year, but this year were delayed until early May.

And the Duke of Burgundy butterfly made an appearance in late April this spring, around three weeks later than last year.

Last spring saw butterflies emerging earlier than normal following an unusually mild February and March. But the extreme wet weather that followed resulted in a terrible year for most species.

Butterfly Conservation's findings, which focus on the UK's rare and threatened species, show a large contrast with last years' spring sightings.

Residents in Chile discover around 600 dead animals washed up on the shore in Punta Choros, on the country's northern coast. Officials fear the deaths were caused by blast fishing, explosions used by fishermen to rid the water of sea lions and seals that compete with them for fish stocks. Fishing is one of the most valuable industries to Chile, which has more than 4,000 km (2,500 miles) of coast