Dill, Gherkin, and Jalapeño are the first offspring of the 90-year-old tortoise Mr. Pickles.
Credit: © Jackelin Reyna, Houston Zoo

Mr. Pickles, the 90-year-old radiated tortoise, now has three little tortoises to look after. Mr. Pickles and 53-year-old Mrs. Pickles live at the Houston Zoo in Texas. They welcomed Dill, Gherkin, and Jalapeño to their family in March. Radiated tortoises are native to Madagascar. They are a critically endangered species. Endangered species are living things threatened with extinction—that is, the dying off of all of their kind. Many zoos around the world have studied how to breed radiated tortoises to boost the population.

What’s the difference between a tortoise and a turtle? Tortoises are turtles that live only on land. Tortoises have stumpy hind legs and feet that look like those of an elephant, quite different from the flippers of sea turtles and the webbed feet of most freshwater turtles. Most tortoises have a high, domed shell. They pull their head, feet, and tail into the shell for protection from predators. Tortoises feed primarily on plants.

There are dozens of species of tortoises. Many live in hot, dry regions. Three species live in the United States. The desert tortoise is found in the deserts of the American Southwest. The Texas tortoise inhabits scrublands in southern Texas. The gopher tortoise lives in the sandhills of the Southeastern coastal plain. All three of these tortoises rest in burrows that they dig in the ground. Not all tortoises live in dry habitats. For example, the red-footed tortoise and the yellow-footed tortoise inhabit lowland tropical rain forests in South America.

Tortoises vary widely in size. One of the largest tortoises is the giant Galapagos tortoise, which lives on the Galapagos Islands in the Pacific Ocean. The largest Galapagos tortoises grow to 6 feet (1.8 meters) long. The speckled tortoises of southwestern Africa are among the smallest species. Speckled tortoises are only about 4 inches (10 centimeters) long when fully grown.

Like other turtles, tortoises lay their eggs in holes in the ground. When the eggs hatch, the young dig to the surface to fend for themselves. Most tortoises die in the first 10 years of life. Raccoons, foxes, and other predatory animals feed on tortoise eggs and young tortoises. Tortoises that survive the first several years can live an extremely long time. Some have lived more than 100 years in captivity.

Tortoise populations are declining quickly because people destroy the animal’s habitat and illegally kill tortoises for food. In addition, many tortoises die from diseases introduced by humans. Many countries forbid the capture or killing of tortoises.

September 9, 2019

Tomorrow, September 10, Pope Francis returns to Rome after a six-day apostolic trip to the east African nation of Mozambique and the nearby island nations of Madagascar and Mauritius—the “Three M’s” of the Indian Ocean. Apostolic is another word for papal or having to do with the pope. Throughout the trip, enthusiastic crowds turned out to welcome the pope, who travelled to the three nations as “a pilgrim of peace, hope, and reconciliation.” Francis has been leader of the Roman Catholic Church since 2013.

Pope Francis is concluding a trip to Mozambique, Madagascar, and Mauritius. Credit: © Giulio Napolitano, Shutterstock

On September 4, Francis arrived in Maputo, the capital of Mozambique, where about 40 percent of the people are Catholic. (Madagascar and Mauritius have Catholic populations of roughly 30 percent.) On September 5, the pope visited Mozambique President Filipe Nyusi at the Palácio da Ponta Vermelha (Palace of the Red Point), the president’s official residence. Francis then met with civil and religious authorities and members of the diplomatic corps. He hosted an interreligious prayer meeting with young people before paying a private visit to the “Matthew 25″ House, which helps homeless and impoverished children. On September 6, Francis visited Zimpeto Hospital and celebrated Mass before some 60,000 people at Zimpeto Stadium. (Zimpeto is an area of Maputo.) He then departed for Antananarivo, the capital of Madagascar.

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Maputo is at the southern tip of Mozambique. Madagascar lies across the Mozambique Channel. Credit: WORLD BOOK map

On September 7, Francis visited President Andry Rajoelina at the Iavoloha Palace just outside Antananarivo. Formal meetings then preceded a prayer service at the Monastery of the Discalced Carmelites and a visit to the tomb of the Blessed Victoire Rasoamanarivo (1848-1894), a Malagasy woman who dedicated her life to helping the poor of Madagascar. Pope John Paul II beatified Rasoamanarivo (declared her among the blessed in heaven) in 1989. On Sept. 8, 2019, Pope Francis celebrated Mass before visiting the Akamasoa City of Friendship foundation for the poor. He led a prayer for workers and met with religious officials before leaving for Port Louis, the capital of Mauritius, on September 9.

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Port Louis lies on the west coast of Mauritius. Credit: WORLD BOOK map

Francis began his day (today) in Mauritius with a Mass at the Monument of Mary Queen of Peace in Port Louis. The pope then visited the shrine of the French Catholic priest and missionary Père Jacques-Désiré Laval (1803-1864). Laval (also beatified by John Paul II) dedicated his life to helping the poor and sick of Mauritius, and his shrine is said to have miraculous qualities. The day of Laval’s death, September 9—the day of the pope’s visit—is a special day of celebration and reverence for Catholics of the region. Francis then met with Prime Minister Pravind Jugnauth and acting President Barlen Vyapoory before returning by plane to Antananarivo. Tomorrow, September 10, a final ceremony at Ivato International Airport precedes his scheduled return flight to the Vatican in Rome.

Francis is from Argentina. He is the first pope from Latin America and the first Jesuit pope. Jesuits are members of a religious order called the Society of Jesus. Francis is known for his commitment to social justice, especially for the poor; his humble lifestyle; and his conservative religious beliefs. Francis visited Panama for World Youth Day in January 2019, and in February he became the first pope to visit the United Arab Emirates. Francis travelled to Morocco in March and to the Balkan states of Bulgaria, North Macedonia, and Romania in May and June.

July 26, 2018

The baobab, one of the world’s most unusual and iconic trees, is in danger. The gigantic baobab, known as the “tree of life,” can live as long as 3,000 years. But the hardy trees are suddenly dying in unusual numbers, many long before their expected life spans. Climate change has increased the occurrence of such weather anomalies as droughts, floods, and lightning storms, all of which can harm or kill baobab trees. A destructive mold called black fungus is also appearing more frequently on baobab trees. The tree is further threatened by the loss of its natural habitat to agriculture and development. Habitat loss and illegal hunting have also greatly reduced the population of African elephants, the animals largely responsible for spreading the tree’s seeds. If no action is taken to protect the baobab and its environment, certain species of the tree could be extinct within 100 years.

These giant baobabs form part of the magnificent Avenue of the Baobabs in the Megabe region of western Madagascar. Credit: © Monika Hrdinova, Shutterstock

Baobab is the name of a group of trees that grow in tropical and subtropical regions of the Eastern Hemisphere, especially in Madagascar. The best-known type of baobab is found on the African mainland. It has an extremely thick, often bulging, trunk. This tree may grow to 80 feet (24 meters) tall with a trunk from 30 to 50 feet (9 to 15 meters) in diameter. The tree has white flowers that open at night and are pollinated by bats. The fruit, called monkey bread, is almost 1 foot (30 centimeters) long. It dangles from the tree like a lantern from a long, ropy stem. The fruit holds many seeds buried in a mealy pulp. The pulp, which is rich in vitamin C, serves as food for both animals and people, and it is also used to flavor cool drinks. People sometimes use the leaves and bark in medicines. They make paper, cloth, and rope from the bark fibers. The giant trees also provide shade in the hot climates where they grow, serving as cool gathering places for animals and humans alike.

African elephants, who are themselves in danger, help propagate baobabs by eating the tree’s fruit and seeds (antelopes, baboons, and other animals also contribute). The seeds pass through the animal’s digestive system, and they are then dropped in ready-made fertilizer. Elephants tend to walk great distances in search of food and water, and a single tree’s seeds can thus be spread out over many miles. Ironically, elephants are also known to damage or kill baobab trees in times of severe drought. Elephants sometimes rip apart a baobab’s trunk to get at the tree’s bountiful water supply inside.

Adrian Patrut, a chemist at Babeș-Bolyai University in Romania, has led an international research study on baobab trees since 2005. Patrut pioneered a radiocarbon technique to date baobabs, which do not have the tell-tale age rings found in most trees. Patrut and his team have kept close tabs on the largest and oldest baobabs in southern Africa. They found that 9 of the 13 oldest recorded baobabs (between 1,100 and 2,500 years old) and 5 of the 6 largest have died in the past 12 years—an alarming death rate among these long-living trees. Parts of many other baobabs have also died. The trees have multiple core systems within their massive trunks, allowing parts of the tree to die while the rest lives on.

Of the nine species of baobab trees, six are endemic to the African island of Madagascar. Of those six, half are on the Red List of Threatened Species compiled by the International Union for the Conservation of Nature and Natural Resources (IUCN). The numbers of three Madagascar baobabs—Adansonia grandidieri, Adansonia perrieri, and Adansonia suarezensis—have dropped more than a 50 percent since the 1950′s. A. perrieri and A. suarezensis are considered critically endangered. The numbers of the remaining baobab species that live in mainland Africa, the Arabian peninsula, and Australia are also on the decline.

March 3, 2017

In Madagascar, a new technology will help keep track of the east African island’s famous long-tailed, furry inhabitants (and cute human cousins): lemurs. To help identify and study the endangered animals, a team of lemur experts and computer scientists has developed a lemur facial recognition system. The biometric system, called LemurFaceID, uses computers to analyze photographs and video much like other systems that identify people. LemurFaceID differentiates the animals according to their eyes and skin patterns, while also noting body size or shape and the presence of scars or injuries.

LemurFaceID can tell this handsome lemur apart from the other lemurs in its jungle neighborhood. Credit: © Shutterstock

Scientists classify lemurs, along with human beings, apes, and monkeys, as primates. Lemurs live only in Madagascar and Comoros, a small island group between Madagascar and the African mainland. Because of hunting and habitat loss, the animals are critically endangered. Tracking lemurs in the wild helps scientists learn more about the animals’ habits and life cycles. Scientists can then develop fine-tuned conservation strategies to protect the animals. Identifying lemurs in the wild also helps people spot animals illegally captured to be sold as pets.

A zookeeper feeds ring-tailed lemurs at the Nyíregyháza Zoo in Hungary. Ring-tailed lemurs are threatened by hunting and habitat destruction in their native Madagascar. Credit: © Attila Kisbenedek, AFP/Getty Images

Anil Jain, a computer science and engineering professor at Michigan State University, developed LemurFaceID with the help of a team of scientists and graduate students. The team fed hundreds of images of wild lemurs into the system, which correctly identified individuals 98.7 percent of the time. Jain and his team published the results of their lemur facial recognition study last month in the journal BioMed Central Zoology.

Once applied, LemurFaceID will use automated cameras to photograph lemurs in their natural habitats. Use of the facial recognition system will cut down drastically on the cost, time, and effort of tracking lemurs in the wild. Previous tracking largely relied on researchers trapping and individually tagging each animal—a tried-and-true method, but quite costly and time consuming, and distressing for the lemurs as well. With LemurFaceID, the animals will only have to “say cheese” for the camera and then scamper on their way. Researchers can then keep track of the animals simply by turning on their computers (and maintaining the cameras, of course).

After LemurFaceID proves itself in the wild, the technology may be adjusted for the study of other animals, particularly those with variable facial hair and skin patterns such as bears, raccoons, red pandas, and sloths.

Aug. 10, 2012

Lemurs, long-tailed, furry mammals related to monkeys, are probably the most endangered group of vertebrates (animals with backbones) on Earth, conservationists with the International Union for the Conservation of Nature and Natural Resources (IUCN) have reported. The IUCN, also known as The World Conservation Union, is a federation of government and private conservation organizations that works with countries and organizations around the world to save rare plant and animal species from extinction. Lemurs live in the wild only in the island countries of Madagascar and Comoros, which lie off the southeast coast of Africa. At a workshop in Madagascar, IUCN conservationists classified 23 of the 103 known species of lemur as critically endangered, the highest threat level. In 2008, the IUCN had reported that 8 species were critically endangered. Altogether, 91 percent of lemur species are currently in danger. As a result, these primates are more threatened than any other species of mammal as well as any species of reptile, amphibian, bird, or bony fish, according to the IUCN.

A poor country, Madagascar in recent years has been wracked by political upheaval that has severely limited government efforts to protect the tropical forests where the lemurs live. Conservationists cited both widespread illegal timber logging and an increase in hunting for bushmeat as reasons for the lemur’s accelerating decline. About 90 percent of Madagascar’s original forests, which once covered most of the island, have been cut down. The island’s lemurs and other tree-dwelling animals now survive in scattered sections of the surviving forests, mostly near the coast.

Additional World Book articles:

• Conservation
  
• Deforestation
  
• Poaching
  
• In the Treetops: Life in the Rain Forest Canopy (a Special Report)