Top 10 animal records facts

Bears. The area of nasal mucous membrane in a bear's head is 7 times greater than a bloodhound's (and one hundred times larger than in a human's). Polar bears have been seen to march up to 40 miles in a straight line to reach a prey animal they have detected.

The giant squid. Giant squids have the largest eyes of any living creature except perhaps colossal squid – over 30 centimeters (1 ft) in diameter. Large eyes can better detect light (including bioluminescent light), which is scarce in deep water.

Large size. Ligers are the largest known cats in the world, reaching over 400 kg. In contrast, pumapards (hybrids between pumas and leopards) tend to exhibit dwarfism.

420. A cat named Dusty, born in 1935, in Bonham, Texas, USA gave birth to 420 kittens during her life. On June 12, 1952, she gave birth to the last litter (one female).

Elephant seal. The biggest recorded "beachmaster" male of the southern elephant seal was 5,000 kg (11,000 lb) and 6.9 m (22.5 ft) long. A bear can grow up to 1,000 kg - five times less.

Wandering albatross. The longest-winged examples verified have been about 3.7 m (12 ft), while Andean Condors and Marabou Storks reach up to 3.2 m. Wandering Albatrosses spend most of their life in flight, landing only to breed and feed.

Elephant. Gestation in elephants typically lasts around two years, which is longer than 16 months of a whale and 15 of a camel. Newborn elephants weigh around 120kg (260lb).

Arapaima (Arapaima gigas). The arapaima, pirarucu, or paiche are any large species of bonytongue in the genus Arapaima native to the Amazon and Essequibo basins of South America. Genus Arapaima is the type genus of the family Arapaimidae. They are among the world's largest freshwater fish, reaching as much as 3 m (9.8 ft).

In Southeast Asia. The saltwater crocodile is the largest of all living reptiles, reaching up to 6.3 m and 1,360 kg. It may be found from Northern Australia to the eastern coast of India.

Over 80. Greater was the world's oldest greater flamingo, residing at the Adelaide Zoo in Adelaide, Australia. It was at least 83 years old, having arrived at the zoo from either Cairo or Hamburg in either 1933, 1930, 1925, or 1919, at which point it was already a full-grown adult. On October 29, 2008, Greater was attacked and beaten by four teenagers. In late January 2014, Greater's health deteriorated even further, and the decision was made to euthanize Greater.