Nature

A bull shark swims at the Ocearium in Le Croisic, western France, on December 6, 2016.     / AFP PHOTO / LOIC VENANCELOIC VENANCE/AFP/Getty Images

Loic Venance/AFP/Getty

A bull shark swims at the Ocearium in Le Croisic, western France. Photo Loic Venance/AFP/Getty

Lino Mirgeler/dpa/AFP

Seagulls sit on poles in Friedrichshafen at the Bodensee (Lake Constance), southern Germany. Photo Lino Mirgeler/dpa/AFP/Getty 

Starlings put on a display as they gather in murmurations on November 25, 2016 in Gretna, Scotland. It is thought that starlings flock together in large groups for various reasons such as flocking together makes it difficult for predators to target a single bird, it also keeps them warm. They gather over their autumn roosting site just before dusk and perform their acrobatic whirling motions before setting down for the evening.  (Photo by Jeff J Mitchell/Getty Images)

Jeff J Mitchell/Getty

Starlings put on a display as they gather in murmurations in Gretna, Scotland. It is thought that starlings flock together in large groups for various reasons such as flocking together makes it difficult for predators to target a single bird, it also keeps them warm. They gather over their autumn roosting site just before dusk and perform their acrobatic whirling motions before setting down for the evening. Jeff J Mitchell/Getty

Morning mist sits over the Cropston Reservoir in Britain, October 3, 2016.   REUTERS/Darren Staples TPX IMAGES OF THE DAY

Darren Staples/Reuters

Morning mist sits over the Cropston Reservoir in Britain. Photo Darren Staples/Reuters 

* Breakfast Time For The Lions At ZSL London Zoo On World Lion Day

Carl Court/Getty

A lioness drinks after being fed by senior keeper Glynn Hennessy at ZSL London

TOPSHOT - Aerial view taken on May 12, 2016 shows cars driving on the winding L401 country road past rapeseed fields near Nienstedt close to Bad Muender am Deister, central Germany. / AFP PHOTO / dpa / Julian Stratenschulte / Germany OUTJULIAN STRATENSCHULTE/AFP/Getty Images

Julian Straten/AFP

Cars driving on the winding L401 country road past rapeseed fields near Nienstedt Germany 

A bee collects pollen from a bluebell fl...A bee collects pollen from a bluebell flower at the Herrenhaeuser Gaerten park in Hanover, central Germany, on May 9, 2016. / AFP PHOTO / dpa / Sebastian Gollnow / Germany OUTSEBASTIAN GOLLNOW/AFP/Getty Images

Sebastian Gollnow/AFP

A bee collects pollen from a bluebell flower at the Herrenhaeuser Gaerten park in Hanover, Germany 

Birds on Farne Islands...Puffins join Shags and Guillemot birds  on the Farne Islands just off the Northumberland coast for the start of the breading season. PRESS ASSOCIATION Photo. Picture date: Wednesday April 20, 2016. Rangers on one of Britain's most important seabird colonies are hoping for a more successful summer after flooding wreaked havoc last year. See PA story NATURE Puffins. Photo credit should read: Owen Humphreys/PA Wire

Owen Humphreys/PA

Puffins join Shags and Guillemot birds on the Farne Islands just off the Northumberland coast for the start of the breading season. Rangers on one of Britain’s most important seabird colonies are hoping for a more successful summer after flooding wreaked havoc last year 

Marco Polo Flower World In Yangzhou...YANGZHOU, CHINA - APRIL 10:  (CHINA OUT) Aerial view of the flower fields in Marco Polo Flower World on April 10, 2016 in Yangzhou, Jiangsu Province of China. The Marco Polo Flower World included seven themed sessions with various kinds of flowers.  (Photo by VCG/VCG via Getty Images)

VCG/Getty

Aerial view of the flower fields in Marco Polo Flower World in Yangzhou, China. The Marco Polo Flower World included seven themed sessions with various kinds of flowers 

Beached Hunstanton Sperm Whale Dies...HUNSTANTON, ENGLAND - FEBRUARY 05: Crowds gather as a sperm whale lies dead after becoming stranded on a beach between Old Hunstanton and Holme on February 5, 2016 in Hunstanton, England. The whale is the 29th to have died after beaching in Europe in the past two weeks. Due to its weight of between 25 and 30 tonnes, the mammal was unable to be rescued. (Photo by Ben Pruchnie/Getty Images)

Ben Pruchnie/Getty

Crowds gather as a sperm whale lies dead after becoming stranded on a beach between Old Hunstanton and Holme in Hunstanton, England. The whale is the 29th to have died after beaching in Europe in the past two weeks

A spider is silhouetted against a string of lights in Overland Park, Kansas.

Charlie Riedel/AP

A flock of coloured pigeons fly during a pigeon-breeding competition in the southern Spanish village of Bollullos de la Mitacion, on January 27, 2015. During competition a single dove is chased by dozens of pigeon cocks resulting winner the male which courts the hen for longer.

Cristina Quicler/AFP/Getty

A flock of coloured pigeons in pursuit of a dove during a pigeon-breeding competition in the southern Spanish village of Bollullos de la Mitación, Spain.

People Enjoy Cherry Blossoms In Japan...UDA, JAPAN - APRIL 08:  (CHINA OUT, SOUTH KOREA OUT) In this long exposure image, the 'Matabe-e zakura', cherry blossom which is believed to be more than 300 years old, is in full bloom on Aprul 8, 2014 in Uda, Nara, Japan.  (Photo by The Asahi Shimbun via Getty Images)

The Asahi Shimbun/Getty

In this long exposure image, the ‘Matabe-e zakura’, cherry blossom which is believed to be more than 300 years old, is in full bloom in Uda, Nara, Japan 

Butterflies Are Released Into The Natural History Museum's Exhibtion...LONDON, ENGLAND - MARCH 31:  Butterflies emerge from their chrysalises in the Natural History Museum's 'Sensational Butterflies' outdoor butterfly house on March 31, 2014 in London, England. The temporary attraction on the East Lawn of the Natural History Museum houses hundreds of free-flying, rare butterflies and runs from April 3, 2014 until September 14, 2014.  (Photo by Oli Scarff/Getty Images)

Oli Scarff/Getty

Butterflies emerge from their chrysalises in the Natural History Museum’s “Sensational Butterflies” outdoor butterfly house in London. The temporary attraction on the museum’s East Lawn houses hundreds of free-flying, rare butterflies and runs from April 3 until September 14. 

Spring weather Mar 7th...A Red Squirrel, with a nut in it's mouth, jumps across a wall in Kielder Forest, Northumberland. PRESS ASSOCIATION Photo. Picture date: Friday March 7, 2014. Kielder Forest is England's largest forest at 250 square miles and is home to the largest remaining Red Squirrel population in England. Photo credit should read: Owen Humphreys/PA Wire

Owen Humphreys/PA

A red squirrel, with a nut in its mouth, jumps across a wall in Kielder Forest, Northumberland. Kielder Forest is England’s largest forest at 250 square miles and is home to the largest remaining red squirrel population in England 

A flock of migrating cranes is seen at the Hula Lake Ornithology and Nature Park in northern Israel...A flock of migrating cranes is seen at the Hula Lake Ornithology and Nature Park in northern Israel December 20, 2013. The Hula Valley is a stopping point for hundreds of species of birds along their migration route between the northern and southern hemispheres.

Nir Elias/Reuters

A flock of migrating cranes is seen at the Hula Lake ornithology and nature park in northern Israel. The Hula Valley is a stopping point for hundreds of species of birds along their migration route between the northern and southern hemispheres. 

A family of Asiatic wild elephants search for food in the Deepor Beel Wildlife Sanctuary on the outskirts of Guwahati, India.

EPA

A family of Asiatic wild elephants search for food in the Deepor Beel Wildlife Sanctuary on the outskirts of Guwahati, India.

An Olive Ridley sea turtle (Lepidochelys Olivacea) arrives to spawn at the start of the nesting season at Ixtapilla beach, on the Pacific coast of Michoacan State, Mexico. According to local residents, more than 1000 turtles are expected to arrive each day during the nesting season.

Hector Guerrero / AFP

An olive ridley sea turtle (Lepidochelys Olivacea) arrives to spawn at the start of the nesting season at Ixtapilla beach, on the Pacific coast of Michoacán state, Mexico. According to local residents, more than 1,000 turtles are expected to arrive each day during the nesting season.

An elephant grazes at the Amboseli National Park, in the shadow of Mount Kilimanjaro, Kenya. The Kenyan and Tanzanian government have started a joint aerial count of elephants and other large mammals in the shared ecosystem of the Amboseli-West Kilimanjaro and Natron-Magadi landscape. The seven day survey will cost $104,000.

Tony Karumba / AFP

An elephant grazes at the Amboseli National Park, in the shadow of Mount Kilimanjaro, Kenya. The Kenyan and Tanzanian government have started a joint aerial count of elephants and other large mammals in the shared ecosystem of the Amboseli-West Kilimanjaro and Natron-Magadi landscape. The seven day survey will cost $104,000.

TOPSHOTS Visitors look at the fish throu...TOPSHOTS Visitors look at the fish through the transparent walls of a tunnel in a lake in Madra, 70 km southeast from Brno, South Moravia, Czech Republic on September 30, 2013. The tunnel, which is located at a depth of three meters, measuring eight meters in length from which one can observe sturgeon, carp, catfish, perch, tench, eell and trout. AFP PHOTO/ RADEK MICARADEK MICA/AFP/Getty Images

Radek Micaradek/AFP/Getty

A three-metre deep underwater tunnel allows visitors to watch fish in a lake at Madra, Czech Republic. Sturgeon, carp, catfish, perch, tench, eel and trout can be viewed from the eight-metre transparent tube, located 70km southeast of Brno, South Moravia.