Ukrainian President Volodymyr Zelensky will meet US President Joe Biden and Vice President Kamala Harris in Washington on Thursday. Leon Neal/Getty Images
CNN
Ukrainian President Volodymyr Zelensky¡¯s visit to the White House on Thursday could be his final chance to convince a receptive American president of his country¡¯s war aims.
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The precise details of the ¡°victory plan¡± Zelensky plans to present in separate meetings to President Joe Biden and Vice President Kamala Harris are unknown, having been closely held until they are presented to the American leaders.
But according to people briefed on its broad contours, the plan reflects the Ukrainian leader¡¯s urgent appeals for more immediate help countering Russia¡¯s invasion. Zelensky is also poised to push for long-term security guarantees that could withstand changes in American leadership ahead of what is widely expected to be a close presidential election between Harris and former President Donald Trump.
The plan, people familiar with it said, acts as Zelensky¡¯s response to growing war weariness even among his staunchest of western allies. It will make the case that Ukraine can still win and does not need to cede Russian-seized territory for the fighting to end if enough assistance is rushed in.
That includes again asking permission to fire Western provided long-range weapons deeper into Russian territory, a line Biden once was loathe to cross but which he¡¯s recently appeared more open to as he has come under growing pressure to relent.
Even if Biden decides to allow the long-range fires, it¡¯s unclear whether the change in policy would be announced publicly.
Biden is usually apt to take his time making decisions about providing Ukraine new capabilities. But with November¡¯s election potentially portending a major change in American approach to the war if Trump were to win, Ukrainian officials and many American ones believe there is little time to waste.
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Trump has claimed he will be able to ¡°settle¡± the war upon taking office and has suggested he¡¯ll end US support for Kyiv¡¯s war effort.
¡°Those cities are gone, they¡¯re gone, and we continue to give billions of dollars to a man who refused to make a deal, Zelensky. There was no deal that he could have made that wouldn¡¯t have been better than the situation you have right now. You have a country that has been obliterated, not possible to be rebuilt,¡± Trump said during a campaign speech in Mint Hill, North Carolina, on Wednesday.
Comments like those have lent new weight to Thursday¡¯s Oval Office talks, according to American and European officials, who have described an imperative to surge assistance to Ukraine while Biden is still in office.
As part of Zelensky¡¯s visit, the US is expected to announce a major new security package, thought it will likely delay the shipping of the equipment due to inventory shortages, CNN previously reported according to two US officials. On Wednesday, the US announced a package of $375 million.
The president previewed Zelensky¡¯s visit to the White House a day beforehand, declaring on the margins of the United Nations General Assembly his administration was ¡°determined to ensure that Ukraine has what it needs to prevail in fight for survival.¡±
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¡°Tomorrow, I will announce a series of actions to accelerate support for Ukraine¡¯s military but we know Ukraine¡¯s future victory is about more than what happens on the battlefield, it¡¯s also about what Ukrainians do make the most of a free and independent future, which so many have sacrificed so much for,¡± he said.
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Axolotl problems
As Mexico City grew and became more industrialized, the need for water brought pumps and pipes to the lake, and eventually, ¡°it was like a bad, smelly pond with rotten water,¡± Zambrano said. ¡°All of our aquatic animals suffer with bad water quality, but amphibians suffer more because they have to breathe with the skin.¡±
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To add to the axolotls¡¯ problems, invasive fish species such as carp and tilapia were introduced to the lake, where they feed on axolotl eggs. And a 1985 earthquake in Mexico City displaced thousands of people, who found new homes in the area around the lake, further contributing to the destruction of the axolotls¡¯ habitat.
These combined threats have devastated axolotl populations. According to the International Union for Conservation of Nature, there are fewer than 100 adult axolotls left in the wild. The species is considered critically endangered.
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While the wild axolotls of Lake Xochimilco have dwindled to near-extinction, countless axolotls have been bred for scientific laboratories and the pet trade. ¡°The axolotl essentially helped establish the field of experimental zoology,¡± Voss said.
In 1864, a French army officer brought live axolotls back to Europe, where scientists were surprised to learn that the seemingly juvenile aquatic salamanders were capable of reproduction. Since then, scientists around the world have studied axolotls and their DNA to learn about the salamanders¡¯ unusual metamorphosis (or lack thereof) as well as their ability to regrow injured body parts.
In addition to their role in labs, axolotls have become popular in the exotic pet trade (though they are illegal to own in California, Maine, New Jersey and Washington, DC). However, the axolotls you might find at a pet shop are different from their wild relatives in Lake Xochimilco. Most wild axolotls are a dark grayish brown. The famous pink axolotls, as well as other color variants such as white, blue, yellow and black, are genetic anomalies that are rare in the wild but selectively bred for in the pet trade.
What¡¯s more, ¡°most of the animals in the pet trade have a very small genetic variance,¡± Zambrano said. Pet axolotls tend to be inbred and lack the wide flow of different genes that makes up a healthy population in the wild. That means that the axolotl extinction crisis can¡¯t simply be solved by dumping pet axolotls into Lake Xochimilco. (Plus, the pet axolotls likely wouldn¡¯t fare well with the poor habitat conditions in the lake.)
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An ancient ¡®terror crocodile¡¯ became a dinosaur-eating giant. Scientists say they now know why
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A massive, extinct reptile that once snacked on dinosaurs had a broad snout like an alligator¡¯s, but it owed its success to a trait that modern alligators lack: tolerance for salt water.
Deinosuchus was one of the largest crocodilians that ever lived, with a body nearly as long as a bus and teeth the size of bananas. From about 82 million to 75 million years ago, the top predator swam in rivers and estuaries of North America. The skull was wide and long, tipped with a bulbous lump that was unlike any skull structure seen in other crocodilians. Toothmarks on Cretaceous bones hint that Deinosuchus hunted or scavenged dinosaurs.
Despite its scientific name, which translates as ¡°terror crocodile,¡± Deinosuchus has commonly been called a ¡°greater alligator,¡± and prior assessments of its evolutionary relationships grouped it with alligators and their ancient relatives. However, a new analysis of fossils, along with DNA from living crocodilians such as alligators and crocodiles, suggests Deinosuchus belongs on a different part of the crocodilian family tree.
Unlike alligatoroids, Deinosuchus retained the salt glands of ancestral crocodilians, enabling it to tolerate salt water, scientists reported Wednesday in the journal Communications Biology. Modern crocodiles have these glands, which collect and release excess sodium chloride.
Salt tolerance would have helped Deinosuchus navigate the Western Interior Seaway that once divided North America, during a greenhouse phase marked by global sea level rise. Deinosuchus could then have spread across the continent to inhabit coastal marshes on both sides of the ancient inland sea, and along North America¡¯s Atlantic coast.
The new study¡¯s revised family tree for crocodilians offers fresh insights into climate resilience in the group, and hints at how some species adapted to environmental cooling while others went extinct.
With salt glands allowing Deinosuchus to travel where its alligatoroid cousins couldn¡¯t, the terror crocodile settled in habitats teeming with large prey. Deinosuchus evolved to become an enormous and widespread predator that dominated marshy ecosystems, where it fed on pretty much whatever it wanted.
¡°No one was safe in these wetlands when Deinosuchus was around,¡± said senior study author Dr. Marton Rabi, a lecturer in the Institute of Geosciences at the University of Tubingen in Germany. ¡°We are talking about an absolutely monstrous animal,¡± Rabi told CNN. ¡°Definitely around 8 meters (26 feet) or more total body length.¡±