| Barriers to entry, in a way |
New York Times |
29 May 2026 |
| River blockers |
Newsday |
26 May 2026 |
| Beavers' constructions |
USA Today |
28 Apr 2026 |
| Beaver projects |
Newsday |
26 Apr 2026 |
| Hydropower sources |
LA Times Daily |
03 Apr 2026 |
| River stoppers |
Thomas Joseph |
03 Mar 2026 |
| Creators of some artificial lakes |
USA Today |
08 Feb 2026 |
| Blocks |
Wall Street Journal |
17 Jan 2026 |
| River blockers |
Eugene Sheffer |
15 Jan 2026 |
| Power plant constructions |
Newsday |
01 Jan 2026 |
| River blockers |
Eugene Sheffer |
28 Nov 2025 |
| Beaver constructions |
The Telegraph Cross Atlantic |
23 Nov 2025 |
| Beavers' creations |
USA Today |
28 Oct 2025 |
| River barriers |
Newsday |
14 Oct 2025 |
| Beaver projects |
Universal |
02 Oct 2025 |
| River blockers |
Eugene Sheffer |
17 Sep 2025 |
| Stream-blocking structures |
The Telegraph Cross Atlantic |
13 Sep 2025 |
| Blocks |
Thomas Joseph |
30 Aug 2025 |
| River diverters |
Family Time |
25 Aug 2025 |
| Poodle papers line items |
Newsday |
12 Jul 2025 |
| Beaver creations |
LA Times Daily |
07 Jul 2025 |
| Fish _ gives access upstream for e.g. salmon (4) |
|
|
| River blockers |
Eugene Sheffer |
02 Jun 2025 |
| Checks for mothers |
|
|
| River stoppers |
Thomas Joseph |
26 May 2025 |
| Rivet stoppers |
|
|
| Beaver-made blockades |
Newsday |
07 Apr 2025 |
| Barriers built by beavers |
USA Today |
25 Mar 2025 |
| Hydro power sources |
LA Times Daily |
15 Mar 2025 |
| River barriers |
LA Times Daily |
17 Feb 2025 |
| Reservoir barriers |
USA Today |
30 Jan 2025 |
| Hydroelectric projects |
New York Times |
26 Jan 2025 |
| Hoover and Aswan, e.g. |
The Telegraph Cross Atlantic |
30 Dec 2024 |
| Beavers' constructions |
USA Today |
18 Nov 2024 |
| Aswan, Bhakra, Hoover, et al.? |
|
|
| Barriers water |
|
|
| Horses' mothers |
|
|
| Blocks (a river) |
The Telegraph Quick |
21 Sep 2024 |
| River blockers |
Commuter |
09 Sep 2024 |
| River blockers |
Eugene Sheffer |
02 Sep 2024 |
| Beaver-made blockades |
Newsday |
20 Aug 2024 |
| River blockers |
Eugene Sheffer |
17 Aug 2024 |
| River blockers |
USA Today |
14 Aug 2024 |
| Beaver structures |
LA Times Daily |
05 Aug 2024 |
| Beaver constructions |
|
|
| Flow stoppers |
Wall Street Journal |
24 Jul 2024 |
| River blockers |
Eugene Sheffer |
11 Jul 2024 |
| Beavers' constructions |
USA Today |
10 Jul 2024 |
| River blockers |
Newsday |
30 Jun 2024 |
| Stops up |
Premier Sunday |
30 Jun 2024 |
| River blockers |
USA Today |
25 Jun 2024 |
| River barriers |
USA Today |
23 Jun 2024 |
| Stops up |
New York Times |
18 Jun 2024 |
| Beavers creations |
Universal |
06 Jun 2024 |
| River structures |
|
|
| Structures built by beavers |
|
|
| Flow utilizers |
|
|
| Blocks |
Wall Street Journal |
04 May 2024 |
| Structures for flood control |
|
|
| Temporary permit - and fish ladder (4) |
|
|
| Hydroelectric projects |
New York Times Mini |
28 Mar 2024 |
| Flow blockers |
Premier Sunday |
24 Mar 2024 |
| Beavers build them |
USA Today |
19 Mar 2024 |
| River blockers |
Eugene Sheffer |
15 Mar 2024 |
| Blocks up |
Thomas Joseph |
21 Feb 2024 |
| Beavers' creations |
USA Today |
09 Jan 2024 |
| Bears : Dens :: Beavers : ___ |
|
|
| Winsor and Wachusett, for two |
|
|
| Beaver's creations |
Universal |
29 Dec 2023 |
| Hoover and Contra |
|
|
| River blockers |
New York Times |
11 Dec 2023 |
| River blockers |
Eugene Sheffer |
24 Nov 2023 |
| River blockers |
USA Today |
13 Nov 2023 |
| River stoppers |
Thomas Joseph |
30 Oct 2023 |
| River blockers |
LA Times Daily |
18 Sep 2023 |
| River stoppers |
Thomas Joseph |
29 Aug 2023 |
| Beaver constructions |
|
|
| Beavers build them |
USA Today |
27 Jul 2023 |
| Beavers' formations |
Universal |
20 Jun 2023 |
| River-blocking structures |
Newsday |
25 Apr 2023 |
| River blockers |
Eugene Sheffer |
25 Apr 2023 |
| Blocks up |
Premier Sunday |
09 Apr 2023 |
| Stops (up) |
LA Times Daily |
30 Mar 2023 |
| Blocks up |
Thomas Joseph |
01 Mar 2023 |
| River-blocking structures |
Newsday |
09 Jan 2023 |
| River barriers |
USA Today |
03 Jan 2023 |
| Beavers build them |
Wall Street Journal |
28 Nov 2022 |
| River blockers |
Eugene Sheffer |
31 Oct 2022 |
| River-blocking constructions |
USA Today |
07 Oct 2022 |
| River blockers |
Eugene Sheffer |
21 Sep 2022 |
| Beaver constructions |
|
|
| Holds back, in a way |
New York Times |
30 Jul 2022 |
| Reservoir makers |
Thomas Joseph |
30 May 2022 |
| Blocks |
Thomas Joseph |
20 Apr 2022 |
| River blockers |
Eugene Sheffer |
03 Dec 2021 |
| Beavers build them |
Wall Street Journal |
16 Nov 2021 |
| Hoover and Grand Coulee, for two |
|
|
| Some power producers |
Wall Street Journal |
15 Sep 2021 |
| Power-production projects |
Newsday |
05 Sep 2021 |
| River stoppers |
Thomas Joseph |
23 Aug 2021 |
| Blocks |
New York Times |
13 Aug 2021 |
| Holds back |
Newsday |
10 Jul 2021 |
| River blockers |
USA Today |
01 Jul 2021 |
| Blocks, like a river |
Universal |
11 Jun 2021 |
| Stops up, as a river |
Universal |
14 May 2021 |
| Beaver constructions |
|
|
| Kariba and The Three Gorges, for two |
|
|
| Water containers? |
|
|
| Water containers? |
LA Times Daily |
03 Mar 2021 |
| Beavers’ creations |
Wall Street Journal |
22 Feb 2021 |
| River blockers |
Newsday |
10 Feb 2021 |
| River blockers |
Eugene Sheffer |
04 Feb 2021 |
| River blockers |
|
|
| River blockers |
LA Times Daily |
26 Jan 2021 |
| Beaver's constructions |
|
|
| Beaver's constructions |
|
|
| Beavers' river blockers |
Newsday |
09 Nov 2020 |
| Mica and Tobin |
|
|
| Stops up |
New York Times |
06 Sep 2020 |
| Stream blockers |
|
|
| Stream blockers |
LA Times Daily |
30 Aug 2020 |
| Beaver-made blockades |
Newsday |
25 Nov 2019 |
| TVA structures |
USA Today |
18 Nov 2019 |
| Stops up |
|
|
| Stops up |
LA Times Daily |
07 Nov 2019 |
| Beavers' structures |
|
|
| River-blocking structures |
Newsday |
27 May 2019 |
| Structures that hold water and help generate electricity |
|
|
| Beaver creations |
|
|
| Beaver creations |
LA Times Daily |
23 Jan 2019 |
| Beavers' blockades |
Universal |
14 Jan 2019 |
| Beavers' blockades |
|
|
| Beaver creations |
|
|
| They may make lakes |
LA Times Daily |
18 Nov 2018 |
| They may make lakes |
|
|
| Creators of artificial lakes |
USA Today |
11 Nov 2018 |
| Water blockers |
Universal |
24 Oct 2018 |
| Fish ladder settings |
Wall Street Journal |
17 Oct 2018 |
| Blocks |
Thomas Joseph |
21 Sep 2018 |
| Sites for fish ladders |
|
|
| Some farm mothers |
Universal |
02 Sep 2018 |
| Blocks off |
New York Times |
01 Jun 2018 |
| Beavers' constructions |
Newsday |
21 Mar 2018 |
| Hydroelectricity projects |
USA Today |
24 Feb 2018 |
| Hydroelectric projects |
Wall Street Journal |
13 Feb 2018 |
| Blocks |
Wall Street Journal |
03 Feb 2018 |
| Hoover and Three Gorges, e.g. |
|
|
| They may make lakes |
|
|
| Blocks off |
|
|
| Creators of artificial lakes |
|
|
| Hydroelectricity projects |
|
|
| Fish ladder settings |
|
|
| Sites for fish ladders |
|
|
| Stops up |
|
|
| Some farm mothers |
|
|
| Water blockers |
|
|
| Stops up |
Wall Street Journal |
23 Dec 2017 |
| River blockers |
Universal |
12 Nov 2017 |
| Blocks up |
Thomas Joseph |
28 Sep 2017 |
| Hydropower structures |
USA Today |
27 Sep 2017 |
| River stoppers |
Universal |
19 Sep 2017 |
| Creators of reservoirs |
USA Today |
31 May 2017 |
| Equine mothers |
Universal |
12 May 2017 |
| Sources of some electricity |
Wall Street Journal |
10 Apr 2017 |
| Beavers' prides |
Universal |
21 Feb 2017 |
| Hydroelectric structures |
Wall Street Journal |
13 Feb 2017 |
| James Gardiner and Bill Bennett constructions |
|
|
| Keeps from running |
|
|
| Hydropower structures |
|
|
| River blockers |
|
|
| Creators of reservoirs |
|
|
| Equine mothers |
|
|
| River stoppers |
|
|
| River stoppers |
Thomas Joseph |
31 Dec 2016 |
| Lake makers, at times |
LA Times Daily |
23 Dec 2016 |
| Civil engineering projects |
New York Times |
11 Nov 2016 |
| Holds back |
Wall Street Journal |
10 Nov 2016 |
| River stoppers |
|
|
| Beaver-made barriers |
|
|
| Hydroelectric projects |
USA Today |
12 Sep 2016 |
| Hydropower structures |
Wall Street Journal |
03 Aug 2016 |
| Creators of artificial lakes |
New York Times |
20 Jul 2016 |
| Beavers' handiwork |
Universal |
11 Apr 2016 |
| Beaver structures |
Thomas Joseph |
05 Feb 2016 |
| Civil engineering projects |
|
|
| Hydroelectric projects |
|
|
| Creators of artificial lakes |
|
|
| Lake makers, at times |
|
|
| River barriers |
Eugene Sheffer |
04 Dec 2015 |
| Fish ladder locales |
Wall Street Journal |
10 Oct 2015 |
| They supply hydroelectric power |
Wall Street Journal |
05 Oct 2015 |
| Prevents from running, in a way |
|
|
| River blockers |
USA Today |
30 Jul 2015 |
| Some power producers |
Wall Street Journal |
03 Apr 2015 |
| Obstructs |
Premier Sunday |
29 Mar 2015 |
| Water barriers |
USA Today |
05 Mar 2015 |
| Challenges for salmon |
New York Times |
11 Feb 2015 |
| Fish ladder locales |
|
|
| River blockers |
|
|
| Beaver creations |
|
|
| Stops up |
|
|
| Anti-flood structures |
|
|
| They supply hydroelectric power |
|
|
| Water barriers |
|
|
| Beavers' constructs |
|
|
| Prevents from running, in a way |
|
|
| Hydroelectric structures |
|
|
| Some power producers |
|
|
| Challenges for salmon |
|
|
| Lake creators |
|
|
| Obstructs |
|
|
| River blockers |
|
|
| River blockers |
|
|
| Some power producers |
|
|
| Beaver-built blockages |
|
|
| Hoover and Mossyrock |
|
|
| Holds in check |
|
|
| Beaver projects |
|
|
| Beaver-built blockades |
|
|
| Beaver projects |
|
|
| Holds back |
|
|
| Beaver projects |
|
|
| Bonneville and Hoover |
|
|
| Beaver-built barriers |
|
|
| River regulators |
|
|
| River barriers |
|
|
| Stops up |
|
|
| Lake creators |
|
|
| They may cause course reductions? |
|
|
| Creek blockers |
|
|
| Beavers' projects |
|
|
| Beaver-built barriers |
|
|
| Coolidge and Hoover |
|
|
| River projects |
|
|
| River regulators |
|
|
| Water holders |
|
|
| Water holders |
|
|
| River projects |
|
|
| Beavers' projects |
|
|
| Blocks (up) |
|
|
| River barriers |
|
|
| Electricity generators |
|
|
| Electricity generators |
|
|
| Beavers build them |
|
|
| Blockades, of a sort |
|
|
| Beaver constructions |
New York Times |
26 Dec 2011 |
| Stops up |
|
|
| Beaver constructions |
|
|
| Projects for beavers |
|
|
| Bureau of Reclamation projects |
|
|
| Structures with spillways |
|
|
| Blocks |
|
|
| Hoover and others |
|
|
| Beavers make them |
|
|
| Stops up |
|
|
| Reservoir producers |
|
|
| Public works projects |
|
|
| Water flow stoppers |
|
|
| Flood stoppers |
|
|
| Beavers' constructions |
|
|
| Bonneville and Hoover |
|
|
| TVA structures |
|
|
| Man-made lake formers |
|
|
| Moms on all fours |
|
|
| Some female parents |
|
|
| Roosevelt, Wilson, and Hoover |
|
|
| Broodmares |
|
|
| Hydroelectricity sources |
|
|
| Water gates |
|
|
| Beavers' creations |
|
|
| Water containers? |
|
|
| Creek blocker |
|
|
| Roosevelt and Hoover |
|
|
| Hydroelectric power projects |
|
|
| Beavers make them |
|
|
| Beavers' creations |
|
|
| Broodmares, e.g. |
|
|
| Hydroelectric power projects |
|
|
| Hydroelectric structures |
|
|
| River barriers |
|
|
| Ewes and mares |
|
|
| River barriers |
|
|
| Lake makers |
|
|
| River barriers |
|
|
| Big masonry projects |
|
|
| Blocks |
|
|
| Blocks |
|
|
| Weirs |
|
|
| Watercourse barriers |
|
|
| Hoover and Grand Coulee |
|
|
| Some four-footed mothers |
|
|
| Emulates beavers |
|
|
| River stoppers |
|
|
| Public works projects |
|
|
| Fish ladder locales |
|
|
| Blocks off |
|
|
| Blocks up |
|
|
| Aswan and Hoover, e.g. |
|
|
| Stops up |
|
|
| Blocks up |
|
|
| Glen Canyon and Grand Coulee, e.g. |
|
|
| Beavers' creations |
|
|
| Power sources |
|
|
| Some four-footed parents |
|
|
| Aswan et al. |
|
|
| Hoover and others |
|
|
| Four-footed moms |
|
|
| Broodmares |
|
|
| TVA constructions |
|
|
| Stops up |
|
|
| Roosevelt and Hoover |
|
|
| Hoover and Boulder, e.g. |
|
|
| Some female parents |
|
|
| Holds back |
|
|
| Beavers' creations |
|
|
| Hydroelectric projects |
|
|
| Stops up |
|
|
| Hoover and Glen Canyon |
|
|
| Oroville and Coulee |
|
|
| Grand Coulee and Boulder |
|
|
| Hydroelectric projects |
|
|
| Beavers love 'em |
|
|
| Hindrances |
|
|
| Aswan and Hoover |
|
|
| Four-footed mothers |
|
|
| Busy beaver's buildings |
|
|
| Beaver products |
|
|
| Makes lakes |
|
|
| Grand Coulee et al. |
|
|
| Grand Coulee et al. |
|
|
| Obstructs |
|
|
| Hoover and Grand Coulee, e.g. |
|
|
| Water gates |
|
|
| Glen Canyon and Grand Coulee |
|
|
| Water holders |
|
|
| Hungry Horse and Mossyrock |
|
|
| TVA creations |
|
|
| Colorado blockers |
|
|
| Oroville and Aswan |
|
|
| Beaver business |
|
|
| Flow stoppers |
|
|
| Flood controls |
|
|
| Works like a beaver |
|
|
| Lambs' mothers |
|
|
| Barriers |
|
|
| Stops up |
|
|
| Tajikistan's Rogun and Nurek are the world's highest |
|
|
| Beavers' barriers |
|
|
| Aswan and Kariba |
|
|
| Farm mothers |
|
|
| Stops up |
|
|
| Projects for beavers |
|
|
| Weirs |
|
|
| Beaver's projects |
|
|
| Lake makers, sometimes |
|
|
| Beavers' buildings |
|
|
| Beaver-built blockages |
|
|
| Beaver's masterworks |
|
|
| Farm females |
|
|
| Pond blockers |
|
|
| Beavers' constructions |
|
|
| Sire's mates |
|
|
| Certain barriers |
|
|
| Hoover and Ataturk |
|
|
| Creek constrictors |
|
|
| Female parents |
|
|
| Hoover and Roosevelt, e.g. |
|
|
| Four-footed parents |
|
|
| Bonneville and Hoover |
|
|
| Weirs |
|
|
| They hold water |
|
|
| Aswan and Kariba |
|
|
| Water barriers |
|
|
| Steeplechasers' mothers |
|
|
| Barriers |
|
|
| Beavers' creations |
|
|
| Don Pedro and Yellowtail |
|
|
| Coulee and Boulder |
|
|
| Oahe, Oroville et al. |
|
|
| Sires' mates |
|
|
| T.V.A. works |
|
|
| Hoover and Roosevelt |
|
|
| Bottles up |
|
|
| Cougar and Oroville |
|
|
| Hoover and Aswan |
|
|
| Rain checks |
|
|
| Oahe and Owyhee |
|
|
| Beavers' works |
|
|
| Beaver products |
|
|
| Hungry Horse and Hoover |
|
|
| Boulder and Aswan |
|
|
| Obstructs |
|
|
| Hoover et al. |
|
|
| T.V.A. units |
|
|
| San Luis and Fort Peck |
|
|
| Hoover and Roosevelt. |
|
|
| Barriers. |
|
|
| Beaver's forte. |
|
|
| Bear Creek, Bull Shoals, etc. |
|
|
| Hoover, Roosevelt, Coolidge, etc. |
|
|
| Flatfish. |
|
|
| Folsom and Fontana. |
|
|
| Power projects. |
|
|
| Oahe and Gatun. |
|
|
| Norris and Coolidge. |
|
|
| Fort Peck, Oahe, etc. |
|
|
| Fort Peck, Oahe, Garrison, etc. |
|
|
| Works of Paddy the Beaver. |
|
|
| Reclamation project structures. |
|
|
| Burmese knives. |
|
|
| Stanches. |
|
|
| Hoover, Shasta, Grand Coulee. |
|
|
| Weirs. |
|
|
| Grand Coulee and others. |
|
|
| Wilson, Norris and Hoover. |
|
|
| Hoover, Garrison, Oahe, etc. |
|
|
| Obstructs. |
|
|
| Masterpieces of engineering. |
|
|
| Hoover, Shasta, etc. |
|
|
| Animal mothers. |
|
|
| Animal mothers |
|
|
| Keeps back (with "up"). |
|
|
| Bureau of Reclamation projects. |
|
|
| Water blocks. |
|
|
| Sources of power. |
|
|
| Fort Peck and Folsom. |
|
|
| Roosevelt and Hoover. |
|
|
| Bonneville and Fontana. |
|
|
| Engineering feats. |
|
|
| Cherry Valley and Bartlett. |
|
|
| TVA structures. |
|
|
| Hoover, Shasta, Hungry Horse. |
|
|
| Beavers' forte. |
|
|