This species is rare and reported to be found only in the hills of northeast and southeast regions of the country. Chinese Pangolins are considered a delicacy and are hunted on a wide scale for human consumption. The body parts are also used in traditional medicines. Factors such as habitat destruction and hunting constantly challenge its survival. Therefore, it qualifies for Critically Endangered category.

This species is rare and currently reported to be found only in the Chittagong Hill Tracts. It is highly exploited for its meat and body parts which are used for medicinal purposes and is under continuous threat of hunting and poaching, therefore, it qualifies for Critically Endangered category.

Tiger used to occur in and around all the forested areas of Bangladesh until the 1950s and in many villages up to the beginning of 20th century (Mitra 1957, Khan 1985, 1987a, 1987b, 1996, Khan and Chowdhury 2003, Khan 2011). Village-grove-dwelling tigers completely disappeared when the last tiger was shot in Banglabandha, Panchagarh, in 1962 (Khan 1987ab).The Sal forest population decimated by 1980s when those in the forests of the hill districts by the same period too. In these two forest ecosystems the decline is nearly 100 percent. Thankfully, the population in the Sundarbans appears to have stabilized since 1990s. Various estimates indicated the Tiger numbers between 106 and 500 (Ahmad et al. 2009, Khan 2011, 2014, Bangladesh Forest Department 2015 in litt.). In view of the disappearance of all populations from the village groves, mixed evergreen and Sal forests and being down to a single population restricted only to the Bangladesh and India parts of the Sundarbans, its unabated poaching and habitat destructions Bengal Tiger in Bangladesh has been categorized as Critically Endangered.

The species was known to occur all over the country and in all habitats as recently as 1940, except possibly for a major portion of the Sundarbans and coastal forests (Khan 1986). It no longer occurs west of longitude 90°E, nor in the Sal forest ( Shorea robusta) belt of northcentral Bangladesh where it was last sighted in Madhupur National Park in 1962 (Khan 1985). Now totally absent from the Sundarbans and from Sal forest, the species is occasionally found in the tea gardens and evergreen forests of Sylhet, notably Rajkandi and Patharia (Gittins and Akonda 1982), Chittagong, Chittagong Hill Tracts and Cox's Bazar forest divisions (Khan 1984, 1985, 1986). The Leopard has become rare and its population may no longer be viable in Bangladesh (Khan 1986). Panthera pardus is evaluated as Critically Endangered because from 1940, Extent of Occurrence and Area of Occupancy of this species have been reduced by more than 90% of areas.

This species is very rare and inhabits within limited areas of the mixed evergreen forests of the northeastern and southeastern parts of the country. The habitats are highly fragmented and in continuing decline with hunting, poaching and killing by the locals. There are only a few sighting records of the species which although can be a result of the secretive nature of the species but extensive hunting by the indigenous communities cannot be overlooked. Although the species is protected by the law of the land but it also restores the right of the indigenous communities' culture. The reasons of the decline of the species population are understood but no such visible action for the protection of the species is in place. So, the species is considered Critically Endangered.

This species occurred in and around all the wetlands and forested areas of Bangladesh until 1980s. Its population has declined more than 90% due to hunting and poaching, loss of natural habitat and severe conflict with commercial fish farming. There is a small semi-captive population conserved traditionally in Norail District and used for fishing. However, this has also declined more than 80% in last two decades. Therefore, it has been categorized as Critically Endangered.

The species is known to occur in wetland habitats of Greater Sylhet and Greater Mymensingh (IUCN Bangladesh 2003, Asmat 2009) but there is no recent sighting. Once it was widespread in Bangladesh (Asmat 2009, Khan 2015) but its population has been reduced rapidly, which is still going on. Many of its former habitats have been dried out or converted, causing the decline of its Extent of Occurrence. Thus, the species is listed as Critically Endangered.

There is eighty five percent loss in the potential habitat of this bear over the last four decades (Islam et al. 2013). There is one recent confirmed record of Sun Bear from Bandarban in 2015 (S.C. Rahman pers. comm.). One individual kept in captivity at Bangabandhu Safari Park, Dulahazara collected from Chittagong Hill Tracts. Although Extent of Occurrence and Area of Occupancy are beyond the threshold levels, the population is no way close to 50 mature individuals. Thus, it has been categorized as Critically Endangered.

This species is very rare but found only in the degrading mixed evergreen forests. Though the Extent of Occurrence and Area of Occupancy of this species are much larger than the threshold level, the habitat quality and quantity have decreased at least more than 80%. Moreover, the total mature individuals in the wild will not exceed 250. Therefore, the species qualifies as Critically Endangered.

The Gaur used to be considered as an extinct species in Bangladesh (IUCN 2000), but few years ago the confirmed presence of two small resident populations in Kassalong RF (forests of Vulongtoli Mon and Betling), Rangamati, was reported (Khan 2013, S. Chakma pers. comm.). Moreover, Gaurs are rarely sighted in Sangu WS and few other bordering forests in Bandarban, but it is not yet sure whether they represent any resident population or vagrant individuals (Khan 2013).