Statement Analysis:
The given statement consists of two parts:
(a) Dodo from Mauritius and Quagga from Australia get extinct
(b) Hotspots are under more protection than other biodiversity-rich regions

Explanation:
(a) Dodo from Mauritius and Quagga from Australia get extinct:
Dodo, a flightless bird, was native to the island of Mauritius in the Indian Ocean. It became extinct in the late 17th century due to habitat destruction, hunting, and the introduction of invasive species. Similarly, the Quagga, a subspecies of the Plains Zebra, was native to South Africa. It became extinct in the late 19th century due to excessive hunting and competition with domestic livestock. Both the Dodo and Quagga were unable to adapt to the changing environment and were driven to extinction.

Therefore, statement (a) is correct.

(b) Hotspots are under more protection than other biodiversity-rich regions:
Hotspots are defined as areas with high levels of biodiversity and a large number of endemic species. These regions are considered to be of significant conservation value due to the concentration of unique and threatened species. Hotspots are targeted for conservation efforts as they represent irreplaceable ecological treasures.

Hotspots receive more protection compared to other biodiversity-rich regions due to several reasons:
1. High Species Richness: Hotspots have a higher number of species compared to other regions. Protecting these areas ensures the conservation of a larger number of species in a relatively small area.
2. Endemism: Hotspots are characterized by a high number of endemic species, which are found nowhere else in the world. Protecting hotspots helps prevent the loss of these unique species.
3. Threatened Species: Hotspots often contain a significant number of threatened species, including those categorized as critically endangered, endangered, or vulnerable. Conservation efforts in hotspots aim to safeguard these species from extinction.
4. Ecosystem Services: Hotspots play a crucial role in providing various ecosystem services, such as carbon sequestration, water regulation, and maintenance of soil fertility. Protecting hotspots ensures the preservation of these essential services.

Therefore, statement (b) is correct.

Conclusion:
Both statements (a) and (b) are correct.