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A small (30-35 kg) stiped marlin caught on a lure near a school of small (less than 1 kg) skipjack tuna. Released. Water depth 176 m.

Large patch of parasitic copepods (?Gloiopotes huttoni) above and in front of the anal fin.

UW images are frame grabs from a GoPro Hero5.

Twee River redfin

Arguably one of the most threatened freshwater fishes in South Africa. Endemic to one tributary of the Olifants River, Western Cape. Current red list status: Critically Endangered

Lo-fi screen grabs from a video gratefully provided by a recreational fisher. Estimated length 2.4m (approx. 8ft). ID based on rostral tooth count (26R, 25L), rostral teeth placement (teeth noticeably closer together at the tip than the base of rostrum), and first dorsal fin placement (completely behind pelvic fin origin).

Detailed info in English: http://life-on-earth.ru/amu-darya-and-syr-darya-shovelnose-sturgeons/amu-darya-shovelnose-sturgeons-conservation-uzbekistan
Detailed info in Russian: http://life-on-earth.ru/amudarinskie-lopatonosy/amudarinskie-lopatonosy-proekt-sokhraneniya-uzbekistan
The photos:
Pseudoscaphirhynchus hermanni caught in Amu Darya River (near Khanka, Khorezm, Uzbekistan) in 2015. The photo was taken in Khorezm Mamun Academy in Khiva (a branch of the Academy of Sciences of Uzbekistan) where the fish was kept in captivity for several years for conservation purposes.

Detailed info: http://life-on-earth.ru/sokhranenie-bioraznoobraziya/amudarinskie-lopatonosy-kyzylkum

Juweniles of various ages of Вig broadnose form of Pseudoscaphirhynchus kaufmanni caught in Aprile 2005 as bycatch in the middle stream of Amu Darya River flowing between Kyzylkum and Karakum Deserts (Kyzylravat, Uzbekistan).

Detailed info: http://life-on-earth.ru/sokhranenie-bioraznoobraziya/amudarinskie-lopatonosy-reka-vakhsh-tadzhikistan

Photos 1-19:
Pseudoscaphirhynchus kaufmanni (Small narrownose form) caught in the lower stream of Vakhsh River (Tadjikistan) in 2012-2013 for conservation purposes and its eggs (on various stages of theier development) and larva (the photos of eggs and larva were taken by Dmitry Balashov - a member of EARAZA the most rare Eurasian sturgeons conservation group).
The last photo:
Alexey Chernyak with Pseudoscaphirhynchus kaufmanni (Вig broadnose form) caught at the same place in 2012 for conservation purposes (Вig broadnose form is a rare guest in Vakhsh River coming from Amu Darya River time to time.

Detailed info: http://life-on-earth.ru/sokhranenie-bioraznoobraziya/sakhalinskij-osetr-nizovya-reki-tumnin-khabarovskij-kraj
The photos 1-5:
A juvenile of Acipenser mikadoi caught as bycatch in the lower stream of Tumnin River in June 2008 (juveniles of Acipenser mikadoi are living and developing in Tumnin River for several years before going to sea);
the photos 6-15:
Females of Acipenser mikadoi caught in the lower stream of Tumnin River during spawning period in May-June 2008 for conservation purposes (propagation);
the photos 16-20:
Eggs of Acipenser mikadoi on various stages of development (2015). The eggs were got from a wild female caught in the lower stream of Tumnin River in June 2015 and were fertilized by sperm which were got from males of 2008 generation - a result of propagation of wild females and males from Tumnin River in 2008. The photos of eggs were taken in June 2015 in Anyuy Fishery of the Russian Fishery Agency in Nanay People Area (Khabarovsk Region, Russia) about 600 km from the spawning area of Acipenser mikadoi in Tumnin River. The reserve groups of several generations of Acipenser mikadoi are kept in Anyuy Fishery as a result of conservation efforts initiated in 2007 by Viktor Khrisanfov - an eminent sturgeon specialist in cooperation with Alexey Chernyak.

This pair of now extinct Golden Toads was photographed at the entrance to the Monteverde Cloud Forest Reserve where they were kept for visitors to the park to see since their observance in the wild was limited to only a few days a year during the onset of their breeding season (late May & early June). This species is sexually dimorphic, the males are bright orange or yellow and females are dark brown with red spots.

Date is approximate. 3 individuals (2 males & 1 female) seen sometime in April, 1987. My mother and father (@dmpeterson ) were living in Monteverde in the spring of 1987, staying with the Gavin family. I have been digitizing their old slides, and thought these ones were significant, so I uploaded them. The date and location are approximate, based on their best recollection.