Yacare caimans suffering in drought-stricken Paraguay

In this June 25, 2016 photo, the remains of a dead yacare caiman lies on dry riverbed of the Pilcomayo river, near Fortin General Diaz, Diaz, Paraguay. The meandering Pilcomayo river, which borders Argentina's Formosa province is a glacier fed river that floods twice a year and spills into Paraguay as well as Argentina. (AP Photo/Jorge Saenz) (Copyright 2016 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistribu)

In this June 25, 2016 photo, two yacare caimans move on the shore of a reservoir in the San Jorge cattle ranch near Pilcomayo river, near teh community of Fortin General Diaz, Paraguay. Thousands of caimans are stranded in these man made reservoirs as the river itself has been reduced to a trickle due to an ongoing drought. (AP Photo/Jorge Saenz) (Copyright 2016 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistribu)

In this June 25, 2016 photo, a stork flies over a saltwater lagoon near Pilcomayo river, near the community of Fortin General Diaz, Paraguay. This area of the country, known as Chaco Boreal, is in the midst of a severe drought that is affecting the local yacare caiman population. (AP Photo/Jorge Saenz) (Copyright 2016 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistribu)

In this June 25, 2016 photo, the carcass of a dead yacare caiman lies on dry riverbed of the Pilcomayo river, near the community of Fortin General Diaz, Paraguay. Thousands of the reptiles are in danger due to the severe drought that is affecting the area. (AP Photo/Jorge Saenz) (Copyright 2016 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistribu)

In this June 25, 2016 photo, yacare caimans swim in an artificial reservoir in the San Jorge cattle ranch near the dried up Pilcomayo river, close the town of Fortin General Diaz, Paraguay. Apart from the lagoon, 18 wells have been dug to secure water sources for the reptiles. (AP Photo/Jorge Saenz) (Copyright 2016 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistribu)

In this June 25, 2016 photo, yacare caimans crowd the shore of the diminished Pilcomayo river, near the community of Fortin General Diaz, Paraguay. The glacier fed river is in the midst of a severe drought that is endangering the reptiles. (AP Photo/Jorge Saenz) (Copyright 2016 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistribu)

In this June 25, 2016 photo, a Nivacle Indian walks with his grandson on the Pilcomayo dry riverbed, near the community of Fortin General Diaz, Paraguay. The river, that floods twice a year, has had its course diverted mostly into the bordering Argentine province of Formosa. Authorities in Paraguay claim this was due to sedimentation on the Paraguayan side and dredging on the Argentine side. (AP Photo/Jorge Saenz) (Copyright 2016 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistribu)

In this June 25, 2016 photo, a yacare caiman suns itself on Pilcomayo river bed, near the community of Fortin General Diaz, Paraguay. The severe drought that is endangering the caimans is due in part to the clogging of the river due to sediment deposits. (AP Photo/Jorge Saenz) (Copyright 2016 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistribu)

In this June 25, 2016 photo, stagnant water, what remains of the Pilcomayo river surrounds a tree stump, near the community of Fortin General Diaz, Paraguay. This area of the country, known as Chaco Boreal, is in the midst of a severe drought that is affecting both man and beast. (AP Photo/Jorge Saenz) (Copyright 2016 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistribu)

In this June 25, 2016 photo, a startled yacare caiman jumps into an artificial reservoir at the San Jorge cattle ranch near the Pilcomayo river, near the community of Fortin General Diaz, Paraguay. Cattle ranchers have build these reservoirs to try and save as many caimans as they can from an ongoing drought. (AP Photo/Jorge Saenz) (Copyright 2016 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistribu)