Actually it was not declared extinct... The Black Rhino is critically endangered.
The Baiji DolphinFunctionally extinct by 2006.
IUCN: database entry.
Scientific name:
Lipotes vexillifer.
Picture source (Wikipedia).
An expedition organized by The Baiji Foundation in late 2006 sought evidence that Baiji white dolphins still existed in their only habitat, the Yangtze river in China. Scientists from six nations on two research vessels travelled for almost 3500 kilometres to the Yangtze Delta, and then retraced their route. They were equipped with sophisticated optical instruments and underwater microphones, but were unable to detect any surviving dolphins. The Foundation published a report on the expedition and declared the species functionally extinct. What does functionally extinct mean? It means too few potential breeding pairs remain to ensure that the species will survive.
The dodo bird became extinct in the early 1600's. The Triceratops became extinct long before that.
the year 2007 polar bears started running low so that might be the next one.
The passenger pigeon became extinct in 1914 when the last known individual, named Martha, died at the Cincinnati Zoo. Once one of the most abundant bird species in North America, hunting and habitat destruction led to their rapid decline and eventual extinction.
You can't answer this question as bird species are going extinct all the time...
Animal species are becoming extinct all the time, but we often don't know about it as no one had ever identified the species, many humans have not even seen because we aren't looking.
The Seismosaurus became extinct by what most scientists believe; by meteors.
England
It was actually in 1681. After being discovered, merely a centry ago The dodo bird was very easy to catch. Due to this fact people, dogs, rats, even pigs, would hunt and kill the bird indiscriminately and eat its eggs. this meant the only 200 years after the bird was discovered, it became extinct.
The north American passenger pigeon
Namibia
Rhodium
because all the other birds are going extinct in Haiti and also it i the most beautiful bird in the Caribbean!