
[Editor's note: Conor Kennedy traveled this summer to Cuba to dive the Gardens of the Queen, one of the most pristine marine environments in the Caribbean, to conduct ecological assessments of the coral reef ecosystem with Ocean Doctor. This is Part II of a five-part series. Read Part I, Part III, Part IV and Part V.]
Castro told us that for many years he had fished and scuba dived Cuba's coastal waters without understanding either the biological importance or the fragility of the coral reefs. In fact, his machismo as a sportsman was notorious, and we later met fishermen on Cuba's south coast who remembered Castro as a deadly spear fisherman. Castro told us that his encounter with Jacques Cousteau—the undersea explorer, conservationist and inventor of the aqualung—had changed his perspective, transforming him into a fierce environmentalist.
Inspired by Cousteau, Castro launched Cuba on one of the most aggressive reef and fishery preservation efforts of any nation in the world. Cuba's aim is to permanently protect 25 percent of its coastal waters as marine reserves. Compare that to less than two percent of the U.S. coastal zones and a worldwide average of only around one percent. But the jewel in Cuba's crown of marine conservation is the “Gardens of the Queen," the nearly perfectly preserved reef that we had come to the island to dive.
Castro spoke passionately about many other things—the ability of LED bulbs to save energy and the great potential for diesel dependent Caribbean islands to invest in wave, tidal and solar energy. He soliloquized about space junk, the constellations and the painful rigors of a Jesuit education. He told us that he spends hours each day reading information from the Internet. "You wouldn't believe," he said in astonishment, "how much information is on the Internet." He warned of the danger of nuclear weapons and the fact that a nuclear exchange during the 1962 missile crisis could have destroyed human life on our planet. He remarked that even today, an accidental exchange, given the power of nuclear weapons after World War II, could destroy humanity and our civilization, “which required 4 billion years to develop since the birth of the universe."
My 12-year-old brother, Aidan, asked Castro about Fulgencio Batista, the dictator whom he overthrew in 1959. Aidan asked which side Batista's ancestors had taken during Cuba's War of Independence from Spain in 1898. Castro had told us that his own father came to Cuba to fight on the side of the anti-colonial revolutionaries and stayed on as a contractor for the universally despised United Fruit Company. Castro answered that Batista's father had fought for independence on the side of Jose Marti and Cuba's patriots. Afterward Castro wrote a letter containing a more detailed description of the Batista family history for Aidan, which he sent us by courier. At the end of our meeting, Castro walked us to our car.
Although the residents of Havana are poor, Cuba boasts that it has the lowest crime rate in the Americas. Even Aidan felt safe walking the streets to visit Havana's markets and restaurants even late at night. Small entrepreneurs, many of them using money from American relatives to finance their enterprises, have opened new businesses—ice cream parlors, cigar stores, restaurants and barber shops—on nearly every street in Havana. Nearly all of Havana's famous taxis are perfectly preserved vintage 1940s and 1950s Chevys, Buicks and Cadillacs. We rode to the bazaar market—a former locomotive factory—and visited, Jose Marti Park, the Museum of the Revolution and other landmarks, including Ernest Hemingway's favorite restaurants and bars, in a 100-year-old Model T.
Approaching Havana's famous shoreside boulevard Malecón. Morrow fortress in the background.
Visiting the Antonio Nuñez Jiménez Foundation of Nature and Man. Photo credit: David E. Guggenheim
Aidan at the Museum of the Revolution laying wreath on the wreckage of Major Anderson's U2 shot down during the Cuban Missile Crisis.
Lruxandra Pérez educates the group about Old Havana. Pictured (L-R) J-P Balas, Josh Bernstein, Dr. Rebecca Vidra and Helena Janulis. Photo credit: David E. Guggenheim
A satirical wall art, "The Corner of the Cretins," commemorating Batista and three U.S. presidents in Havana.
Constance Difede, vice president for Flag and Honors at the Explorers Club, traces the route of the 1987-88 expedition led by Dr. Antonio Nuñez Jiménez from the heart of the Amazon to the Caribbean by canoe. Photo credit: David E. Guggenheim
Colette and Daniel Bennett stand by a mural of Cuban revolutionary, Camilo Cienfuegos at the Republica Oriental del Uruguay School in Cuba's sustainable community, Las Terrazas. Photo credit: David E. Guggenheim
Private enterprise in Havana-an outdoor salon. A sign of change toward small-scale privatization.
Camilo Cienfuegos a hero of the revolution. Images of Fidel are prohibited to discourage the growth of a cult of personality.
Approaching Havana's famous shoreside boulevard Malecón. Morrow fortress in the background.
Visiting the Antonio Nuñez Jiménez Foundation of Nature and Man. Photo credit: David E. Guggenheim
Aidan at the Museum of the Revolution laying wreath on the wreckage of Major Anderson's U2 shot down during the Cuban Missile Crisis.
Lruxandra Pérez educates the group about Old Havana. Pictured (L-R) J-P Balas, Josh Bernstein, Dr. Rebecca Vidra and Helena Janulis. Photo credit: David E. Guggenheim
A satirical wall art, "The Corner of the Cretins," commemorating Batista and three U.S. presidents in Havana.
Constance Difede, vice president for Flag and Honors at the Explorers Club, traces the route of the 1987-88 expedition led by Dr. Antonio Nuñez Jiménez from the heart of the Amazon to the Caribbean by canoe. Photo credit: David E. Guggenheim
Colette and Daniel Bennett stand by a mural of Cuban revolutionary, Camilo Cienfuegos at the Republica Oriental del Uruguay School in Cuba's sustainable community, Las Terrazas. Photo credit: David E. Guggenheim
Private enterprise in Havana-an outdoor salon. A sign of change toward small-scale privatization.
Camilo Cienfuegos a hero of the revolution. Images of Fidel are prohibited to discourage the growth of a cult of personality.
The centerpiece of the Museum of The Revolution is the Granma, the decrepit wooden yacht upon which Castro and 81 revolutionaries traveled from their exile in Veracruz, Mexico in 1956 to launch their revolution against Batista from the Sierra Maestra Mountains. Castro told us that by that time he already “had a Marxist background" but that many of his fellow fighters were simple idealists who despised corruption and tyranny and wanted to fight for democracy and justice.
In selecting 81 fighters for the journey from the much larger roster of revolutionaries who wanted a space on board, Castro told us that he looked for men of small size rather than ideological purity in order to cram aboard the tiny vessel as many guerrilla fighters as possible. We also saw the wreckage of the American U-2 piloted by U.S. Air Force Lt. Rudolph Anderson who died when Cuban and Russian soldiers launched a SAM surface missile against the American spy plane during the Cuban Missile Crisis in 1962. Anderson's downing precipitated the most perilous days in human history by bringing the world to the brink of nuclear war.
The Internet is largely inaccessible in Havana and too expensive for the average Cuban and U.S. cell phones don't work. Few Cubans can afford air conditioners. In the evening, people sit on stoops or on chairs on the sidewalk playing dominoes, or on couches or chairs in their salons watching black and white T.V., their doors and windows wide open to the street. Or they gather by the hundreds in couples or small groups on the sea wall along Havana's famous boulevard, the Malecon, and just talk. Aidan often said that he loves Havana more than any place he has ever been. He said he thought it was a good way to live—without computers, screens, iPhones and Xbox's, although I didn't hear him swear off any of his screens back home.
On every street corner we found Cubans anxious to talk with us. We chatted with cab drivers, waiters, musicians and young and old people we met in the street. We even visited a police station in a fifteenth century fort when a street vendor tried to overcharge us for a haircut. We made our case before the police captain, who quickly vindicated us. We considered the episode a good adventure with Cuban justice. Most people were happy to learn that we were from the U.S. They all wanted to know when our country would end the embargo.
We visited the Plaza of the Revolution, posed in front of the statue of Jose Marti and passed a special park built to accommodate anti-Bush protesters during the George W. Bush administration. Bush's policies in Iraq and Guantanamo were especially unpopular in Cuba. While most Cubans seem proud at having stood up to half a century of U.S. corporate and military power, they still admire America for our country's historic ideals. A bronze statue of Abraham Lincoln dominates Havana's principal park on the Avenida de los Presidentes and another Lincoln statue stands in front of Cuba's Capital, a perfect replica of the U.S. Capitol building, built at a time when Cuba-U.S. relations were strong.
We were equally surprised how often Cubans from every background expressed affection for Miami's Cubans—many of whom the Cuban government has traditionally considered to be enemies and traitors. “We all have a cousin in Miami," many Cubans told us. One Cuban explained that after the Soviet Bloc collapsed in 1991, Cuba's trade partners and generous Russian assistance programs all disappeared. The cataclysmic financial crash that subsequently hit Cuba sent throngs of economic refugees to Miami. These migrants lacked the anti-Castro animus that characterized the Cuban political refugees of yesteryear.
A tour guide later told us the money that Miami Cubans send home to family and relatives provide a critical boost to the Cuban economy. A Cuban official spoke affectionately of the Miami Cubans, “They are our brothers and sisters." Still many Cubans remain wary of knee-jerk anti-Cuban sentiment within the U.S. government. On our way to see Castro, one Cuban told us that the Netflix series, House of Cards, has become the obsession of many Cubans. "We say to ourselves, 'If even 10 percent of this is true, we are all screwed.'"
Sweden's reindeer have a problem. In winter, they feed on lichens buried beneath the snow. But the climate crisis is making this difficult. Warmer temperatures mean moisture sometimes falls as rain instead of snow. When the air refreezes, a layer of ice forms between the reindeer and their meal, forcing them to wander further in search of ideal conditions. And sometimes, this means crossing busy roads.
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By Aaron W Hunter
A chance discovery of a beautifully preserved fossil in the desert landscape of Morocco has solved one of the great mysteries of biology and paleontology: how starfish evolved their arms.
The Pompeii of palaeontology. Aaron Hunter, Author provided
<h2></h2><p>Although starfish might appear very robust animals, they are typically made up of lots of hard parts attached by ligaments and soft tissue which, upon death, quickly degrade. This means we rely on places like the Fezouata formations to provide snapshots of their evolution.</p><p>The starfish fossil record is patchy, especially at the critical time when many of these animal groups first appeared. Sorting out how each of the various types of ancient starfish relate to each other is like putting a puzzle together when many of the parts are missing.</p><h2>The Oldest Starfish</h2><p><em><a href="https://www.biorxiv.org/content/10.1101/216101v1.full.pdf" target="_blank" rel="noopener noreferrer">Cantabrigiaster</a></em> is the most primitive starfish-like animal to be discovered in the fossil record. It was discovered in 2003, but it has taken over 17 years to work out its true significance.</p><p>What makes <em>Cantabrigiaster</em> unique is that it lacks almost all the characteristics we find in brittle stars and starfish.</p><p>Starfish and brittle stars belong to the family Asterozoa. Their ancestors, the Somasteroids were especially fragile - before <em>Cantabrigiaster</em> we only had a handful of specimens. The celebrated Moroccan paleontologist Mohamed <a href="https://doi.org/10.1016/j.palaeo.2016.06.041" target="_blank" rel="noopener noreferrer">Ben Moula</a> and his local team was instrumental in discovering <a href="https://www.sciencedirect.com/science/article/abs/pii/S0031018216302334?via%3Dihub" target="_blank" rel="noopener noreferrer">these amazing fossils</a> near the town of Zagora, in Morocco.</p><h2>The Breakthrough</h2><p>Our breakthrough moment came when I compared the arms of <em>Cantabrigiaster</em> with those of modern sea lilles, filter feeders with long feathery arms that tend to be attached to the sea floor by a stem or stalk.</p><p>The striking similarity between these modern filter feeders and the ancient starfish led our team from the University of Cambridge and Harvard University to create a new analysis. We applied a biological model to the features of all the current early Asterozoa fossils in existence, along with a sample of their closest relatives.</p>Cantabrigiaster is the most primitive starfish-like animal to be discovered in the fossil record. Aaron Hunter, Author provided
<p>Our results demonstrate <em>Cantabrigiaster</em> is the most primitive of all the Asterozoa, and most likely evolved from ancient animals called crinoids that lived 250 million years before dinosaurs. The five arms of starfish are a relic left over from these ancestors. In the case of <em>Cantabrigiaster</em>, and its starfish descendants, it evolved by flipping upside-down so its arms are face down on the sediment to feed.</p><p>Although we sampled a relatively small numbers of those ancestors, one of the unexpected outcomes was it provided an idea of how they could be related to each other. Paleontologists studying echinoderms are often lost in detail as all the different groups are so radically different from each other, so it is hard to tell which evolved first.</p>President Joe Biden officially took office Wednesday, and immediately set to work reversing some of former President Donald Trump's environmental policies.
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In many schools, the study of climate change is limited to the science. But at the University of Minnesota, Twin Cities, students in one class also learn how to take climate action.