European jackal
The European jackal is the largest of the golden jackals, with animals of both sexes measuring 120–125 cm (47–49 in) in total length and 10–13 kg (20–29 lb) in body weight. One adult male in North-Eastern Italy is recorded to have reached 14.9 kg (33 lb). The fur is coarse, and is generally brightly coloured with blackish tones on the back. The thighs, upper legs, ears and forehead are bright reddish chestnut. Jackals in Northern Dalmatia have broader than average skulls, which is thought to result from human induced isolation from other populations, thus resulting in a new morphotype.
American crocodile
In the Tárcoles River in Costa Rica, dozens of and a few individuals frequent bridge crossings (where they are fed daily, which may have helped them reach such consistently large sizes) and are a popular tourist attraction. This species is said to grow largest in the South American river basins, but rarely exceed or reach even there. American crocodiles on the islands or coasts are usually much smaller in size. Adult weight in coastal Belize averaged per one study. In their Florida range, adult length has been recorded as high as , but adult males on average measure long, perhaps slightly smaller than mature males from other continental populations. Common weights of adult American crocodiles in Florida may range from with corresponding lengths of . With extensive conservation efforts underway, there appears to be an increase in the number of large American crocodiles in Florida exceeding in length. On average, the American crocodiles found in Florida are somewhat longer in total length than the American alligator, but large mature American alligators are frequently bulkier and heavier than American crocodiles of similar length. Also, American alligators rarely reach or exceed whereas in populations such as those in Central and South America, this might be around the average size for mature adult males of the American crocodile. A skull of this species was found to measure and is estimated to have belonged to an American crocodile of in length. Large, mature males regularly weigh about 400–500 kg (880–1100 lb), with the individuals of six or more meters surpassing 1000 kg (2,200 lb). Two biologists working with the History Channel series "MonsterQuest" filmed an American crocodile they estimated to be , deep within Everglades National Park in Florida.