There is little information available on the species barring that it is restricted to the forests of the country. As such it has wide Extent of Occurrence and Area of Occupancy. There is no specific threat declining the species in near future and therefore, the species is listed as Least Concern.

So far, this species has only been recorded once from the mixed- evergreen forest patch in Keokradong Range, Ruma, Bandarban (Khan 2012). The forest patches in the Chittagong Hill Tracts have been thoroughly explored by different biologists, but it was never seen anywhere else. Since the species is diurnal and arboreal, it is relatively more visible compared to other mammals of similar sizes. Therefore, it is possible that the species is restricted to only one forest patch where it was first found, so, it has categorized as a Critically Endangered species.

This species has been categorized as Critically Endangered in view of the number of mature individuals being less than 250 and population decline is continuing due to habitat destruction. Also its populations are heavily fragmented and there is very little or no genetic exchanges between two neighbouring populations. Severe human-elephant conflict and poaching are also contributing to this population decline.

This species has been categorized as Endangered in view of the decline in of 50% of its Extent of Occurrence and Area of Occupancy and habitat quality over three generations. Moreover, there exist less than 250 individuals in each subpopulation.

This species qualifies Critically Endangered criteria because of population reduction observed more than 90% over three generations and continuing (Khan 1981, 1987, Khan and Wahab1983, Feeroz 2001, Hasan and Feeroz 2010). Its EOO and AOO are less than the threshold level. Number of mature individuals is less than 20. Found only in two locations.

Population reduction observed around 90% over the last two decades. Both Extent of Occurrence and Area of Occupancy have been reduced during this period. Total number of mature individual is <250 and number of mature individuals in each subpopulation is <50. Population viability assessment (PHVA) estimated 95% reduction of existing population by next two decades. All these occur in severely disjunct habitats having very little or no chance of genetic exchanges between two or more populations. So, this Hoolock Gibbon is assessed as Critically Endangered.

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.