The Sumatran Rhinoceros is a critically endangered species of rhinoceros found primarily on the island of Sumatra in Indonesia. It measures about 2 to 3 meters in length, with a tail of 60 to 70 cm, and weighs between 500 and 800 kg. Its fur is generally light brown or reddish, with thick, wrinkled skin. This rhinoceros is one of the smallest members of the rhinoceros family and has two horns. The Sumatran Rhinoceros is herbivorous, feeding on leaves, fruits, roots, and shoots. It primarily lives in tropical lowland forests and swampy areas. While conservation efforts have been made to protect this species, it remains threatened by deforestation, poaching, and habitat loss, with a population estimated to be fewer than 80 individuals in the wild.

The saiga is an antelope from the Central Asian steppes, recognizable by its prominent, trunk-like nose that filters dust and warms inhaled air. Adapted to arid environments, it migrates in large herds in search of pastures. Its population, once declining, shows signs of recovery due to conservation efforts.

The spotted salamander is an urodele amphibian, 15–25 cm long, with a jet-black back marked by bright yellow spots. It inhabits humid deciduous forests and migrates by night to ephemeral pools in early spring to breed.

The Spotted Salamander is an amphibian primarily found in forests and wetlands across Europe, particularly in France, Spain, and Germany. It typically measures between 15 and 25 cm in length, although some specimens can reach up to 30 cm. Its body is black with bright yellow spots, making it easily identifiable. The Spotted Salamander is a nocturnal and terrestrial animal, hiding during the day under rocks or in holes in the ground to protect itself from the heat. It is carnivorous and feeds primarily on insects, worms, small crustaceans, and other invertebrates. While it remains relatively abundant in certain regions, this species is threatened by water pollution, habitat destruction, and climate change.

The sambar, or Cervus unicolor, is a large deer native to South and Southeast Asia. It is recognizable by its dark brown coat and impressive antlers in males. Sambars primarily inhabit dense forests, grasslands, and swamps, feeding on leaves, fruits, and bark. They are generally solitary or live in small family groups. The sambar is a crepuscular animal, active mainly at dawn and dusk. Although hunted for its meat and antlers, it remains relatively widespread in its natural habitat. However, deforestation and overhunting threaten some local populations.

The Saola, also known as the 'Asian unicorn,' is one of the rarest and most mysterious mammals on the planet, first discovered in 1992 in the mountains of Vietnam and Laos. This critically endangered cervid has spiral horns and a stealthy gait. It lives in tropical mountain forests and primarily feeds on vegetation. Due to its elusive nature and inaccessible habitat, it is very difficult to observe. It is threatened by deforestation and poaching.

The Serval is a medium-sized feline primarily found in the savannas and grasslands of sub-Saharan Africa, notably in East and Central Africa. It typically measures between 60 and 100 cm in length, with a tail of 30 to 40 cm, and weighs between 9 and 18 kg. Its coat is golden yellow, speckled with irregular black spots, which helps it camouflage effectively in its natural environment. The Serval has long legs, a small head, and large ears, which allow it to easily detect its prey, including small mammals, birds, and reptiles. It is also capable of impressive leaps to catch its prey, particularly birds in flight. While its population remains stable in some areas, the Serval is threatened by habitat loss and illegal hunting.

The sitatunga, or Tragelaphus spekii, is a semi-aquatic antelope found mainly in the marshes and wetlands of Central and East Africa. It is easily recognizable by its reddish-brown coat, vertical white stripes, and long spiraled horns in males. Sitatungas are well adapted to their aquatic habitat, with long, splayed hooves that allow them to move easily through swamps. They are primarily active at dawn and dusk, feeding on aquatic plants, grasses, and leaves. Sitatungas are shy and elusive animals, preferring to remain hidden in dense vegetation to avoid predators.

The Springbok is a small antelope found primarily in the savannas and grasslands of South Africa, Namibia, and Botswana. It typically stands about 75 cm at the shoulder, with a body length of 1.10 to 1.30 meters, and weighs between 30 and 40 kg. Its coat is primarily white and brown, with a dark line running along its back and a large white patch on its sides. What sets the Springbok apart is its ability to perform characteristic jumps, known as "pronking," where the animal leaps into the air with its legs extended, often to signal danger or to impress another individual. The Springbok is herbivorous, feeding primarily on grass and leaves. While it remains relatively abundant in its habitat, it is sometimes threatened by hunting and habitat loss.

The Steenbok is a small antelope found primarily in dry regions and open savannas of sub-Saharan Africa, particularly in countries such as South Africa, Botswana, and Namibia. It typically stands about 45 to 60 cm at the shoulder, with a body length of 80 to 100 cm, and weighs between 8 and 15 kg. Its coat is generally fawn to light brown, with white markings on its legs and around its eyes. The Steenbok has small horns in males, but they are generally more discreet than those of other antelope species. This small herbivore feeds primarily on grasses, fruits, and leaves. It is known for its ability to hide in dense vegetation and escape quickly from predators. While its population remains relatively stable, the Steenbok is sometimes threatened by habitat loss and hunting.

The Sandwich Tern, Sterna sandvicensis, is an elegant seabird known for its white plumage, black cap, and black bill with a yellow tip. It inhabits European and African coasts, nesting in colonies on beaches, islands, and lagoons. It primarily feeds on fish, which it catches by skillfully diving. As a migratory bird, it travels long distances between breeding sites and wintering grounds. The Sandwich Tern is an indicator of coastal ecosystem health, and its conservation is vital in the face of threats like pollution and human disturbance.

The Southern Tamandua is an arboreal anteater found primarily in South America. It is recognizable by its beige and black fur, which allows it to blend into the trees. It has a long sticky tongue, ideal for capturing ants and termites, which make up the bulk of its diet. This mammal is mainly nocturnal and spends the day resting in trees. Although generally solitary, it can sometimes be seen in pairs. Its prehensile tail allows it to move easily through the trees, and it uses its powerful claws to defend itself against predators.

The Bishop Tanager is a small, colorful bird found primarily in the tropical forests and wooded areas of Central and South America, notably in Costa Rica, Panama, Colombia, and Venezuela. It typically measures about 18 cm in length and weighs between 20 and 30 g. Its plumage is especially vibrant, with shades of green, yellow, and red, giving it a striking appearance, which is why it is named as such. The Bishop Tanager is frugivorous, primarily feeding on fruits, berries, and seeds, but it can also eat insects. This bird is known for its social behaviors, living in small groups or pairs, and is often observed moving through trees in search of food. While its population remains stable, it is sometimes threatened by deforestation and the loss of its natural habitat.

The Satyr Tragopan is a fascinating bird native to the mountainous forests of the Himalayas. This medium-sized pheasant is particularly remarkable for its striking plumage. The male displays vibrant colors, with shades of red, orange, and blue, while the female is more subdued with brown and gray tones, allowing her to blend effectively into her surroundings. The Satyr Tragopan is known for its spectacular courtship displays, where the male spreads his feathers and emits loud calls to attract a mate. It primarily feeds on vegetation, seeds, and insects. Although its habitat is threatened by deforestation, it remains relatively common in some areas.

The Myiozetetes similis, commonly known as the Social Flycatcher, is a medium-sized bird with bright yellow underparts and a grayish-brown back. Its head features a distinctive black crown with a white stripe above the eyes. This bird is often found in open areas, near water bodies, or forest edges. Known for its energetic song, it adapts well to various environments, including urban areas. The Social Flycatcher primarily feeds on insects caught in flight but also consumes fruits. It is often seen in pairs or small groups, displaying marked territorial behavior.

The Southern Lapwing, or Vanellus chilensis, is a striking bird from the Charadriidae family, easily identified by its grey and white plumage, black wings, and distinctive call. It is commonly found in open grasslands, wetlands, and agricultural fields across South America. This bird is notably territorial, often defending its space against intruders, including humans. It primarily feeds on insects, worms, and small invertebrates by pecking at the ground. The Southern Lapwing is also known for its distraction displays, feigning injury to lure predators away from its nest.

The striped polecat, scientifically known as Ictonyx striatus, is a small carnivorous mammal belonging to the Mustelidae family. It is easily recognizable by its distinctive black and white fur, with white stripes running along its back. This nocturnal predator is primarily active at night, using its keen sense of smell to hunt small rodents, birds, and insects. The striped polecat is equipped with powerful anal glands that emit a foul odor to deter predators. It primarily inhabits savannas, grasslands, and wooded areas of sub-Saharan Africa. Although its appearance may resemble that of a skunk, it is not directly related to it.